I really wish some kind of steal ability existed for rogues. I guess due to how the game is set up, it'd steal treasure bags from mobs and possibly a bit of copper/silver/gold/play/whatever.
How I'm thinking it could work would be the thief has to be sneaking and unnoticed, then he/she could just walk up to the mob, press the steal icon on the hotbar, and there'd be a higher chance to nab a treasure bag from an NPC.
One thing I always loved about pen and paper D&D was being able to steal or pull of heists. Would add a nice little extra layer to the game here.