This could be a long list....

Shop assistants who call you "Lovely" or "Chick". I'm 60+, neither are appropriate. Add to that "Hiya"; that really grates.

Shops that won't break down high denomination bank notes although you've got them out of the ATM at the store. Except, of course, the one you're using to buy something you don't want in order to get the change you do!!

People who eat quickly (sorry!). It's no good for your digestion and food should be savoured. Not intending to upset anyone, it's your choice.

Incorrect use of "them". For example it's not them apples, it's those apples.

I could go on....