I was never a shrinking violet, but I am usually very polite. However I cannot bear to see rudeness and so at a county show this year when a young and very drunk male pushed in front of me to be able to see the display in the arena better, after a fair amount of jostling behind me to fight his way to the front, I reminded him that I had got there first, that he was a great deal taller than me and indeed all the other people he had pushed through, and that he was being extremely rude. Audible sucking of air through teeth from all surrounding me, but he looked at me for a while and slowly backed down.
However I also told a load of yobs off for littering in a park at 30 and another lot for pulling tiles from an uninhabited house and smashing them on the pavement. Both times DD aged around 10 was with me and she was petrified! Actually no, I think I always was either brave or foolhardy, take your pick.