It worked out well for me in the prison area of act 2 - I couldn't find the key to let out the Imp Chieftain's son, but when I returned from the BFs, my hero was in his cage, triggering his "Thanks for letting me out" dialogue. The imp then ran around in circles, since he couldn't path his way to the exit, and after about a minute, he just disappeared. Guess the game gave up. Since my hero was trapped, the deathknight walked to the exit, teleporting both of them outside.
I wonder if this could be abused to get at the unreachable goodies in the Act 1 armory? <img src="/ubbthreads/images/graemlins/think.gif" alt="" />
