I have a few pet hates. One of them is, seeing people sitting on the train, feet (and therefore shoes) up on the seat opposite. Another breach of “seatiquette” is people sitting on the train, tram, etc when it’s full, blocking the seat next to them with their bag or rucksack. I always move to sit on that sit, just to see the tw*t tut and sigh and move their bag… even if I’m only getting off at the next station.
Another pet hate of mine is the person who cannot argue. I like a good argument. Think of the the Monty Python sketch. Here is a good list of rules for arguing.
Have an argumentative day, won’t you!