So there's this security alert going on near Stockwell – someone's left a burger box on a bus, probably – and there's road closures and diversions and three policemen have spotted something in a bag by the side of the road.

You can tell they're a bit concerned, talking into their radios, wondering if that really is the smell of hair dye and is that bump a mobile phone.

Then along come the bin men who walk past the police and chuck it into the back of the dustbin lorry. It's bin day for that bit of Lambeth…