905She had bumped into a workmate in a café and they were discussing (quite accurately) how, if men had babies, there would be a lot of one-child families.

This is what the subject’s friend said to her partner when he raised the prospect of starting a family. Taken in Kilburn High Road, London – the chap on the left walked right up to me while I was taking this photo and stopped, clearly expecting me to move out of his way on a wide pavement. I didn’t.