I’ve always had a soft spot for bin men – or refuse collectors as we generally call them these days. It used to be dustmen, as I remember from the song by Lonnie Donegan in my infancy: ‘Oh, my old man’s a dust man/He wears a dust man’s hat/He wears “cor blimey” trousers/And he lives in a council flat!’ Donegan made it sound a jolly business, but being a bin man is no picnic.