here is the log

<100%hp 100%m 99%mv 6320tnl> bindl 2.
You step out of the shadows.
You grab the sleepy guard's legs and begin wrapping rope around his ankles.

<100%hp 100%m 99%mv 6320tnl> hide

You continue to methodically tie up the sleepy guard's legs.
The elite guard has arrived.

<100%hp 100%m 99%mv 6320tnl>
You wouldn't want to do that.
You attempt to hide.

What I am reporting is that when the guard walks in the binding targets funny even though I am already halfway through it.

This is by design. The way skills like this work it passes the victim through each step. When a new mob with the exact same name walks in, it screws it up because it is still looking for 2. which is now you.

So long, and thanks for all the fish!