When Dave tells the boys to swallow the condoms full of drugs before they get to the border crossing, a message pops up on screen that says, "Warning: If you're not a cartoon, swallowing a rubber full of drugs can kill you."
Dave: You boys ever been to Mexico before? Well, there ain't no law down there. It's every man for himself. They take no prisoners. Well, actually they take a few... and they torture 'em. (laughs)
Dave: Now it's time for you guys to earn your keep. Look in the glove box.
(Butt-head opens the glove box and pull out two unwrapped condoms)
Butt-head: (to Beavis) Oh no, Dave's gonna boof us!