Week 414: Strange colour

In Soho I note that the pavements have gone a strange colour. They are darker than usual, and splodgy or stripy. I wonder if I am imagining it. THe next day the strange colour strikes me again and I realise it’s because it hasn’t rained and this is a month’s build up of liquids people drop on the floor. I mention this to my colleague and he says “yeah, and it smells of piss”. Of course I don’t…