Lemme guess, the next episode will involve lots of giggling

Seriously, wtf is so funny? Do they get the contestants mind numbingly stoned before every episode? These dudes are laughing their asses off before they even flip over their first card, literally laughing at nothing but sitting at a table

..or maybe not, lol - http://www.youtube.com/watch?v=3PSVP9LuRhU