It’s the end of a long day, a squall is hammering the garden, I’m scrubbing the loo. I’ve got Radio 4 on iPlayer. Material World has an item about recycling waste using flies, and then turning the resulting maggots into chicken or fish food. Jason Drew, the proponent of this technology, tells us how he went round the back of an abbatoir and found a lake of blood and millions of flies. And they were all buzzing in F minor. ‘I know a lot about flies these days’, he says happily. God bless you, Auntie Beeb, you made my day again.