Compared to Phoenix, my pranks are sooooooooo lame ... OK, I have kids, so my pranks are always on the lame side.
One year, after they had all started school and were raving about the little cartons of milk that came with their lunches, I went out and purchased little cartons of heavy cream.
That evening at dinner, they proudly stuck their straws into their cartons, took a big gulp, and ... gagged, at which point they ran to the bathroom to spit the cream into the toilet.
My six-year old approached me, and asked, "Mom, are we supposed to drink that milk?" I replied in the affirmative, and he then burst into tears, exclaiming that he couldn't because, "it tastes like ****!"
Another year, I rolled brownies to look like dog droppings and packed them in their lunches, have placed small cardboard circles inside their pancakes, "frosted" meatloaf with mashed potatoes and presented it as cake.
I went too far when I hung plastic spiders on fishing line above their beds while they slept.
I'd recommend you call Family Services on me, but my kids are now in their teens and 20's, and are quite capable of extracting their own brand of revenge.
Thank you ((((Tucker)))).
I *do* love a good practical joke.