A few years ago I woke up very early on April Fools day and ran into my brother's room and yelled, "Get up, get up, the cops are towing your car!" He ran out the front door wearing only flannel sleep pants and out onto the front lawn to check on his car that was parked in front of our house. While he ran out the front door, I went into the garage and turned on the front lawn sprinklers. I got him good!
Boy was he mad! He didn't talk to me for days...