I recall being horrified by an admittedly very young – and, in my opinion – massively ignorant on a number of levels – male librarian leading the little children's library time for the first time. They were singing The Wheels on the Bus – everyone's great favourite – but he was clearly stuck about the grannies on the bus. In the version I know, the grannies on bus go knit, knit, knit – a bit of a stereotype, but knitting is quite trendy these days and, more to the point (pun not intended) the actions are easy. So he came up with the grannies on the bus all smell of pee. I will leave you to think about the ramifications of this absurdity.