and their fence.

For example:
Dude, we've got to get to Mexico man. There's this premio hash there that is so cheap. Anyway, we were headed down to Texas...and like this guy says we needed a passport or something. Anyhoo, we just started driving out in the desert....and this fence came up out of nowhere. And there were these Mexican on the other side...and they were like "Hey, we want to cross over." And we're like "Hey, we want to cross over..." so we got like these wire cutters and we went one way...and they went the other.

(Mexico has a huge money maker on their hands if they're smart about this.)