HoneyBadger said: If your players won't stop being dicks when you ask them too... find new players. ^this But still +1. I'm just about to introduce a new mechanic to my players (I meant to do it at the beginning of the previous session but I forgot) that pretty much does the same except it doesn't really prevent anything. I say stop and the in game world stops completely. No-one is allowed to make a roll, move their token, even speak, etc. Then I tell, show, play, etc. something "important" and say back and then the world continues. This feature would help a lot with situations where the Initiative tool isn't used and anyone might be just about to do anything. If I say stop it migh be to late, or the player might not hear me, or it might take half a second to realize it was me the GM not me Thomas the NPC who said it etc. Of course this would have to be put behind one push of a button so it would be very fast to put it on and off. I personally would like if this would litereally prevent the players from doing pretty much anything in that campaign. They shouldn't be able to move tokens, change stats, make rolls, etc.It would basically lock interaction with that campaign. They would still see and hear everything but could not change anything other than their own settings.