what are your players expectation? You if they want to play character inspired by Deadpool and have fun and joking, you won’t be able to tame them and make them walk between the lines.
Otherwise in DnD for example, DM is never compelled to make a roll. He can decide the reaction of an NPC base on the speech the players make.
Rolls are done to solve uncertain situations.
If players actions let you think of an obvious reaction just apply it.
Otherwise in DnD for example, DM is never compelled to make a roll. He can decide the reaction of an NPC base on the speech the players make.
Rolls are done to solve uncertain situations.
If players actions let you think of an obvious reaction just apply it.