Today I was in the office, and the school secretary sister handed me a banana. I declined, as I am not really a fan, but we (self, secretary, principal) started talking about them. I said that when people immigrated to America from, for example, Slovakia, they didn't know what a banana was because they had never seen one.
The principal told me that here, older people started eating bananas about 30 years ago. They didn't see what the fuss was all about, because it reminded them of potatoes that had been in the pivnica (cellar) too long. Evidently, old bad potatoes get sweet and are a lot like bananas.