When I was 16/17 my friends and I would go to the gym after school. Whenever we would go there would be this lady there. I would guess she was late 40s early 50s. Anyway, she would like cat-call us literally every time we would pass her. It wasn’t gross stuff at first. One day she was saying the same old stuff to us, but then she singled out one of my friends and said “how about a one-on-one session” or something like that. We all laughed, and I said “we want nothing to do with you grandma”. We all started laughing and I could see that I really hurt her feelings.
To this day, I think about that all the time. I still feel bad about it