I am not sure if this is a bug or not.

When I get a distrup flesh from a mob I never bleed, even if I get a message a couple of ticks later that my bleeding stops.

And one more, a helpfile problem

DARKBIND
Syntax: cast 'darkbind' <target>

Using this spell the caster can attempt to bind an evil being conjured from
the Outer Planes (eg. a Devil, Demon) into service. The caster can expend
greater mana to increase the chances of a successful binding. Evil beings
may require payment for their services, so caution must be used when
bargaining with them.

Does it not also last longer if you put more mana in it, thats just my experience though so I might be on some nice grape crack.