i would try to talk to him. if he starts getting hasty or qeustionable the bus drivers code always works here that being SIT DOWN AND SHUTUP! http://www.southparkstudios.com/clips/150503 . if i may share a story? there was once a school shooting involving one boy who had been bullied and wanted revenge he ended up shooting and wounding several students in which a teacher began to talk him out of it and eventaully saved alot of lives just by being rational and talking him out of it. now if the guys completely bonkers and starts becoming unstable i just shutup at that point
.