11. Revenge Gifts
When I was a kid there was always a war going on every Christmas between my dad and his brothers. He was the first to have kids, and each year a box would arrive for us containing an unreasonably noisy or messy gift, like toy megaphones or a marble set with extra marbles that they knew would get everywhere. Eventually we grew up and my uncles had kids of their own. It was so satisfying to go to the store as a teenager and pick out revenge gifts, such as a splatter paint set.