Hairy Lightning Strike
You take a balloon, fill it with pee, coat it in animal hair, use socks to charge it, stick it on someone like a condom, blow it up, and send a shock so strong it makes them yell and spill their guts.
My friend did it to his mom and she yelled and spilled her soup all over the table.
He did it to his teacher and the whole class laughed so hard they got sent to the principal’s office.
At the park, he did it to a kid and the kid ran crying all the way home.