Quoted:
My aunt decided to host Thanksgiving for the first time one year and we pulled one of the most epic pranks of all time on this poor woman. She's not the sharpest cookie on the tree, and, well, my uncles and I are sadistic in our collective senses of humor.
She had 2 ovens in her kitchen so we turned one of the extra ones on, moved the turkey that was cooking just fine into the other oven once it reached the correct temperature and replaced the turkey with a Cornish Game Hen.
About 20 minutes later, when she went to go check on the turkey, she opened up the oven, and a great wailing was heard throughout the house.
Everyone goes rushing into the kitchen to see what was wrong and the poor woman is in tears. Like, sobbing, wailing, gnashing of teeth, snot bubbles, the whole works.
When my grandma asked her what was wrong, she pointed at the game hen, and, through choked sobs, exclaimed "I think I turned the oven on too high and the turkey got too hot."
Grandma asks, "Why? Is it burnt?"
She says, "No. The turkey shrunk."
At this point me and my uncles are trying to stop ourselves from bursting out in laughter and had to flee the kitchen. Grandma looked at the turkey, turned around very slowly and stalked out of the kitchen.
Needless to say, grandma was less then impressed. Grandpa thought it was hilarious, everyone else spent the next hour explaining to my aunt that the turkey was just fine and that she had been pranked, then they had to spend another hour preventing her from committing brutal, but completely understandable, homicide.
Last year, we served my aunt her own game hen. She was unamused and I was thoroughly soaked by a glass of water poured on my head.
I love Turkey Day shenanigans.