The best one I know of started at deer camp, but actually happened many months later.
My cousin had shot a buck, and when we all met at the cars for lunch, my uncle (his dad) said, "Look - You left the (sex organs) on it. That will spoil the taste of the meat!" So he pulled out his knife and cut them off and tossed tham aside.(Unknown to anyone, he later put them in a plastic bag and took them home to put in his freezer).
A few months later, my cousin and his wife were visiting them and my uncle said, "Let's go to my favorite steak house - my treat." (Unknown to anyone was the fact that one of his good friends was a waitress there, and always ready for a good laugh).
When she served the food, she put a covered dish in front of my cousin. "What's that?', he asked - "That doesn't look like what I ordered."
"Well, let's take a look!", my uncle said - and with a flourish, he lifted the cover to reveal the (sex organs) of that buck neatly positioned on the plate!