What little eccentricities about the people in your life drive you mad?
If I'm out shopping with my mother and show her something I like, she'll always say 'but it's a large/small/extra large' etc. and look at me like I'm bonkers if I haven't picked up my size. Of course I am doing what any normal person would do and just showing her whichever was the first one on the rack. Surely she doesn't need to see something in my size to know if she likes it or not?