When I was in high school, we had formed a small garage band. Once a year, we had an assembly where students could enter a talent class. Our group decided to do the Bellefonte banana song. We did not have a lead singer that could do it very well, but fortunately for us, we had a kid two years behind us (we were all Seniors) that was from Haiti and had the accent to go with the song. We had to coax him to sing it with the band, but he did it and we came in third place. We also became friends with this Sophomore and he sang other songs with the band from then on.
As for bananas, I think there are other fruits and vegetables that have higher amounts of potassium than a banana. Maybe spinach for one. Does that mean that they are also higher in radioactivity?