Metagaming the right way
We were in a fight and one of the party (A) asked another (B) if he needed healing. The DM want him to ask in character.
A (OOC): Hey (B), what’s your maximum hit points?
B (OOC): 42, why?
A (IC): Hey, dumbass?! On a scale from 1-42, how good of shape are you in right now?
*the DM loses it*