April Fools Day; practical jokes

April Fool's Day has gone high-tech.

Here's are some of the oldest (and dumbest) April Fool's Day pranks. Perform them at your own risk: Glue a quarter on the floor.
  Tie someone's shoelaces together.
  Turn on and crank up someone's car radio, wipers, and heat.
  Set all clocks an hour ahead.
  Put a rubber band on the sink sprayer.
  Replace Oreo filling with toothpaste. Or use toothpaste as a frosting for cupcakes.
  Remove the l