I think should be allowed to flee if you somehow find yourself fighting on a sleeping mount. Or perhaps better, not allow yourself to mount a sleeping mount.

If you do want us to be able to mount a sleeping spider/warg, we should not be able to start a fight. If we are attacked, should force a dismount, or wake the mount. Or, at least allow us to flee! I imagine I could have woke the spider but was very confusing and counterintuitive what was happening. (I'm trapped fighting because I'm on a sleeping spider?)

Also, fwiw, overhead from 'an easy kill' is cruel and unusual :)

Log:

A Dark Corridor
The air seems stuffy and you notice a lack of breeze in the stone tunnel.
The sounds of the mountain seem distant. The walls are smooth to the touch,
except for the places where rows of intricate runes have been carved into the
stone. The tunnel has been cut directly into the mountain, sloping slowly
further underground. The dark corridor slopes up slightly to the west, and
deeper into the mountain to the east. To the north is a double door to keep
uninvited intruders from passing by. You can hear the pounding of a blacksmith
along with other sounds echoing loudly from the north.

east west]
A large axe with an opal blade is here.
A giant spider is sleeping here.
A castle guard has been assigned here to guard the king.

civilized <577hp 469m 591mv 5013tnl (56.48%) 12 PM>
gr
Ragglerut's group:
< NPC > a giant spider 74% hp 100% mana 100% mv 0 xp
<32 Rai> Ragglerut 88% hp 99% mana 100% mv 206507 xp

civilized <577hp 469m 591mv 5013tnl (56.48%) 12 PM>
mn
mount
With confidence you mount a giant spider and settle in for the ride.

civilized <577hp 469m 591mv 5013tnl (56.48%) 12 PM>
wb
wield bow
You stop using a small pruning axe.
You stop using the rune-marked war axe named "Animus".
You wield a rune-carved bow set with a glowing blue string.
You feel quite confident with a rune-carved bow set with a glowing blue string.

civilized <577hp 469m 591mv 5013tnl (56.48%) 12 PM>
fa
flaminga
As you pull your next arrow, you dip the head in a flask of oil, then set it ablaze!


civilized <577hp 459m 591mv 5013tnl (56.48%) 12 PM>
gw guard
grappleweapon guard
You lunge for an axe with a blade of opal!
You try to grapple an axe with a blade of opal from the castle guard with your teeth, but you fail
entirely, impaling yourself!
Your grappling EVISCERATES you!

civilized <527hp 459m 591mv 5013tnl (56.48%) 12 PM>
You dodge the castle guard's slice.
You keep yourself safely out of the range of the castle guard's attack.
You keep yourself safely out of the range of the castle guard's attack.
The castle guard dodges your flaming bite.
The castle guard is in perfect health.

----- SNIP -----

civilized <433hp 433m 591mv 5013tnl (56.48%) 1 PM>
The castle guard tries a wild overhead swing.
Seizing a lucky opportunity, the castle guard takes advantage of the situation.
The castle guard's wild overhead attack *** DEVASTATES *** you!
The castle guard has a few scratches.

civilized <289hp 433m 591mv 5013tnl (56.48%) 1 PM>
You dodge the castle guard's slice.
You keep yourself safely out of the range of the castle guard's attack.
You keep yourself safely out of the range of the castle guard's attack.
You keep yourself safely out of the range of the castle guard's attack.
Drops of harmless water spray the castle guard as your drowning is blocked by mithril plate mail
emblazoned with a golden anvil.
The castle guard has a few scratches.

civilized <289hp 433m 591mv 5013tnl (56.48%) 1 PM>
gw guard
grappleweapon guard
You dodge the castle guard's slice.
You keep yourself safely out of the range of the castle guard's attack.
You dodge the castle guard's pierce.
You dodge the castle guard's pierce.
Your drowning DISMEMBERS the castle guard!
The castle guard has some small but disgusting cuts.

civilized <289hp 433m 591mv 5013tnl (56.48%) 1 PM>
You lunge for an axe with a blade of opal!
You grapple an axe with a blade of opal with your teeth and yank it from the castle guard's grasp!
An axe with a blade of opal goes flying!
Your grappling decimates you!
The castle guard has some small but disgusting cuts.

civilized <261hp 433m 591mv 5013tnl (56.48%) 1 PM>
You dodge the castle guard's punch.
You dodge the castle guard's pierce.
You keep yourself safely out of the range of the castle guard's attack.
The castle guard dodges your drowning.
The castle guard dodges your drowning.
The castle guard has some small but disgusting cuts.

civilized <261hp 433m 591mv 5013tnl (56.48%) 1 PM>
The castle guard gets an axe with a blade of opal.
The castle guard wields an axe with a blade of opal.
The castle guard tries a wild overhead swing.
The castle guard's wild overhead attack === OBLITERATES === you!
That really did HURT!
You sure are BLEEDING!
The castle guard has some small but disgusting cuts.

civilized <62hp 433m 591mv 5013tnl (56.48%) 1 PM>
fb
fallback
You dodge the castle guard's slice.
You keep yourself safely out of the range of the castle guard's attack.
You dodge the castle guard's slice.
You keep yourself safely out of the range of the castle guard's attack.
Your drowning DISMEMBERS the castle guard!
The castle guard has some small but disgusting cuts.

civilized <62hp 433m 591mv 5013tnl (56.48%) 1 PM>
You fail to fall back to a safer position!------ FAILED FALLBACK ------
You keep yourself safely out of the range of the castle guard's attack.
The castle guard has some small but disgusting cuts.

civilized <62hp 433m 591mv 5013tnl (56.48%) 1 PM>
You keep yourself safely out of the range of the castle guard's attack.
You keep yourself safely out of the range of the castle guard's attack.
You nimbly sidestep the castle guard's slice.
The castle guard's pierce EVISCERATES you!
You sure are BLEEDING!
The castle guard dodges your drowning.
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
flee
You cannot ride a mount that is resting.
PANIC! You couldn't escape!
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
flee
You keep yourself safely out of the range of the castle guard's attack.
You move out of the range of the castle guard's pierce.
You dodge the castle guard's slice.
The castle guard dodges your drowning.
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
You cannot ride a mount that is resting.
PANIC! You couldn't escape!
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
flee
You cannot ride a mount that is resting.
PANIC! You couldn't escape!
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
flee
You cannot ride a mount that is resting.
PANIC! You couldn't escape!
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
You dodge the castle guard's slice.
You dodge the castle guard's pierce.
You dodge the castle guard's pierce.
Your drowning MASSACRES the castle guard!
The castle guard has some small but disgusting cuts.

civilized <19hp 433m 591mv 5013tnl (56.48%) 1 PM>
The castle guard's kick DISMEMBERS you!
You have been KILLED!!

Agreed, that's weird.

Now whenever a goblin flees, they'll auto-dismount to do so. Should prevent situations like this.