If a player metagamed like that at my table, I’d punish them by not having any monster appear until everyone is back in bed. And have the character on watch be surprised.
The first (and pretty much only) time I played D&D I didn’t know what “metagaming” was and accidentally thought about the puzzle as myself instead of as my player. Apparently the DM wanted justice and I ended up ruining the session for everyone. Needless to say I didn’t go back out of guilt
Moral of the story: please try to be patient with your players. Not all of us are great at avoiding metagaming immediately :\
If a player metagamed like that at my table, I’d punish them by not having any monster appear until everyone is back in bed. And have the character on watch be surprised.
The first (and pretty much only) time I played D&D I didn’t know what “metagaming” was and accidentally thought about the puzzle as myself instead of as my player. Apparently the DM wanted justice and I ended up ruining the session for everyone. Needless to say I didn’t go back out of guilt
Moral of the story: please try to be patient with your players. Not all of us are great at avoiding metagaming immediately :\