Problem: In AR3400 just north of the temple you encounter a "Drunk" NPC that attempts to rob you. If you continuously refuse to give him all your money he'll eventually give you the line "Hey, whats are you uhhhhh........" after which the following line appears in the battlelog:
Action Errors:- Action:Sleep Not found. Check for proper brackets. Line number:1
Expected Behaviour: After giving that line the Drunk passes out?
NOTE: This "Drunk" NPC acts the same way in BG1.
NOTE2: If making him pass out is impossible I'm totally ok with him transforming into a Lich instead.