April Fool's Day - Post Your Best Prank

I used to take those little things wrapped in paper that pop like a firecracker when you throw them and lift the toilet seat up and place a couple directly under the little round bumper on the seat then I would let the seat down very gently on top of them. When the Wife gets up to go to the bathroom early in the morning, BAM instant alarm clock!
how do you keep from laughing when she heads for the restroom??:toothy10::toothy10: