The pineapple on pizza debate

A few weeks ago, I was having breakfast with a friend when I noticed how she was carefully plucking the pineapples from her Hawaiian pizza and relegating them to the side of her plate. I didn't pay much attention to it then. Some people like pineapples, some people don't, I thought. And when she offered them to me, I gladly accepted, spearing the pineapple bits with my fork one by one until I