So a while back I found a place on the internet that sold gas grenades like the cops used to bust up a crowd the way they work is you hit a button and they go until they are out so I was thinking that if there was a way they could be hidden inside around the doorway and be piped outside when they are triggered it would be a good way to make someone leave if they were trying to get in what would you guys say does it sound like something that could be done or have I seen to many spy movies