I have 2 examples.
Ill share one; my stepdad was always a huge piece of shit. He still is, actually. He’d trick us into eating tomatoes. Me at 12 could eat them, whatever. My 5 year old brother was forced to eat them, and got grounded if he didn’t. He would actually force us to eat foods we didn’t like and would literally backhand us across the face for “disrespecting” that we had food on the table.
I worked at a sub shop that had the hottest of the sauces. I told a similar version of this story to my boss, and got my hands on an illegally 'hot" sauce. I poured the whole bottle into a store-bought salsa i knew he’d eat.
My wife and I were in an argument while I was rushing out the door to work. I made two hot dogs for lunch for me to eat on the way to work. I work on call, and was going out of town for a couple of days so I was packing my bags at the same time, all while going through an argument. When I went to leave, I couldn’t figure out where the hot dogs were. I am always misplacing things, and eventually just had to leave without them. An hour later I called my wife and asked her if she threw them away because she was mad at me. Yep, petty as hell. I laughed so hard at that I cried. It’s been twenty years and we still laugh about it.