yogurt and bananas

So the other day we were eating our new favourite lunch here in Ougadougou, yogurt and millet. We came up with the great idea of putting bananas in it for some more flavour. But then we had all the ladies laughing at us and telling us it was completely wrong! We are pretty sure we offended them. So in case any of you are ever in the same situation, bananas dont belong in yogurt in Africa!