I know this subject has been mentioned many a time on MN but I am fucked off with men whistling or humming loudly in public places and basically dominating the place with their tuneless shit.
I've just been into a small charity shop and a man was walking round it whistling so loudly, and it was the kind of shrill whistle that hurts your ears! He also, in typical dominant male style, kept leaning across me to look at things rather than looking at another rack until I'd finished, which meant he was whistling in my ear!
So, I started whistling too. Very loudly and even more shrill and tuneless than his whistle! He glared at me in shock, and the whole shop turned to look, but he stopped fucking whistling!
I'm going to do it more often!