Dumb Guys

Overheard on train:

Dumb Guy #1: Oh, students have been shot. Couldn't have happened to nicer people.
Dumb Guy #2: I guess that's what it says.
Dumb Guy #1: Bunch of spoiled brats.

*silence*

Dumb Guy #1: Hey, do you think those smokestacks are contributing to global warming? *snort, snort*
Dumb Guy #2: I heard that global warming isn't true.
Dumb Guy #1: Yeah, I heard that too. It's a conspiracy.