Generally I like pineapple on pizza, but I have had it a couple times where some of the enzymes in the pineapple mixed with the enzymes in the cheese and it ended up smelling like fresh vomit. It was a fluke but very off-putting.
Yep. Two different times. Probably caused a reaction that produced butyric acid. Not sure. But I can see how it would make a person hate pineapple on pizza.