"But why don't you like it?!"

My friends and I were just discussing some of our pet peeves and one of them said "I hate it when I don't like a certain food and someone asks me why I don't like it. I don't know, there's no reason, you either like it or you don't!" Anyone get annoyed when someone asks you this? My nana always asks me why I don't like greens and all I can say is I don't like the taste, I just plain don't like it.