"Sniffing, letting your children stand up in a supermarket trolley, feet on train seats, littering, dummies in children who can walk/talk, babygros that make 'cute' references to mummy/daddy, wet spoon in the sugar, pots left in the sink, not changing tea towels often enough, wind chimes, rings that have little chains on them, men sitting with their legs spread, heavy perfume, repeated lateness, fake lips, grown women twiddling with their hair/being girly whilst at work, people who havent trained their dogs not to jump up, house signs made out of number plates...."
I've highlighted the ones that I think are pretty normal to find rude, but I do find some of your other choices entertaining, to say the least! Why do you find fake lips rude, for example? 