I had a guy in a training class once who was like that. Thought he knew more than the instructor. Wouldn't shut up. When we got to the hands on part of the class, he wouldn't do the procedures as written, and I finally blew up at him, which offended him enough he went to work with the other team in the class.

OTOH, the class members thanked me for stepping in and being the bitch *g*

Hee.

I'm hoping this guy bails out on his own and leaves town.

well, I'm glad to say he did NOT bring weaponry on his second day. Nor today.

They say he's no longer muttering about the the stupidity of it all, although he's doing a lot of eye-rolling and sighing. (If he thinks it's all so stupid, why doesn't he just bail out?)

Sad to say, Dail, the most of his fellow clasmates are Canadian and thus too polite to call him out.