Step 1. Stuff You Need: 1 or more unsuspecting victim(s), 1 kitchen sprayer, and clear tape.
Step 2. Booby Trapping It: With the water OFF, squeez the little springy lever thingy on the back down. Next, wrap tape around it, securing the lever to the handle. Return it to its original position, with the nozzle pointing towards you.
Step 3. The Results: Now that the sprayer is booby trapped, the next time some unfortunate person washes their hands, does the dishes, or gets a drink, they will take an unexpected shower. I've got the same person three times in a row!