Speaking of practical jokes, my wife pulled one several years ago...
For my wife's birthday several years ago, some people at the law office
where she works hired a male belly dancer to entertain her. She swore
sweet revenge. Six months later, the instigator of the belly dancer
incident had her birthday. My wife arranged for the single brother of
another secretary to meet the instigator for lunch, etc. The instigator
didn't know the brother before this, so it looked like someone had hired
an escort service for her to help celebrate her birthday. The joke,
however, backfired. The secretary and the single brother are now
married. At the wedding, held at a large and famous Chicago hotel,
a gorilla handed out bannanas to the guests, courtesy of my spouse.