Bear was also being very clear that he was utterly rejecting bananas. Apparently they are radioactive. Watching YouTube videos on science does have side effects and now we have a concern about radioactive bananas. They are actually very faintly radioactive, like tobacco, but you need to eat around 35 million for a lethal dose, the wiki article is here. Bear is taking no risks. I think I may have to have a word with him about this.
When I was looking on Wiki for a banana picture (I donate to Wiki, it seems only fair) I found this
Image from WikiCommons, taken by Thelmadatter, used under the Creative Commons Agreement and a really amazing picture
They are red bananas. I didn't realise that bananas came in so many different varieties, none of which have ever ended up on my shopping list. Every day is a school day, except possibly for bear as I am thinking of limiting his YouTube to Donald Duck cartoons.