Seagulls will eat just about anything they can get their beaks on. So when the scavengers spot a bunch of potato chips, there is little doubt they're going to dive in for a snack.

And when those potato chips have been spiked with laxatives, expect things to get messy. See just how much so in the video below.

Thanks to the devious pranksters, many a beachgoer has had an unpleasant day.

On the one hand, we applaud the creativity of the stunt. It definitely made us laugh. But it better not catch on. And if it does, we all know what the prank's creators look like now...