When I was on Contiki, when we were about to pull over to stop for a break, our tour manager would play these short audio clips. They're so funny, some of you might appreciate them!
http://budlight.whipnet.com/
http://thefuntimesguide.com/2004/10/bud_light_real.php
http://budlight.whipnet.com/
http://thefuntimesguide.com/2004/10/bud_light_real.php