Offensive to all 5 senses. Taste horrible, smell horrible, feel horrible, I hate the thought of them and I hate being able to see them/people eating them. Go away.
Most likely psychological for some reason (I was enjoying a Cake until my Dad told me it was Banana cake and I almost vomited on the spot) but still.
Wtf? I love bananas
Liver, I remember I puked in preschool because it looked like poop