It’s happened once, I gave a punch in return, as hard as I could (not very) and offered a second if they wanted it. It was a Man, I don’t think I could punch a Woman.
I punched someone for prodding me in the chest once too, Police called, interviews taken, no further action self-defence which was handy as I was bricking it. This was no midnight brawl in the pub either ,midday in a office I was temping in. I was only 19 I think, big fat old **** didn’t like the way I did something, despite a lack of direction of what they wanted, I said cheerio at 5pm, but FOT wanted all this filing completed and moved, I’d spent all day on it and had done maybe 30%, said I wasn’t allowed to go until it was all done, should be glad of the ‘job’ and that he’s made a deal with the temp agency that I’d stay until it was done, but for no extra money – “no thanks” so he decided to corner me and prod me in the chest to make his point, I’m sure someone who worked for him laughed when I hit him, it was another useless punch, but I made my point. 20 years ago now, by the state of him back then he’s probably dead now.