Trolley tete-a-tete

'...so I said to him "look, I'm a shopping trolley. Shopping, OK?" But oh no. He goes and fills me full of I-don't-know-what rubbish. The cheek of it.'

'Shhh. Don't look now, but that bloke's taking a picture of us.'

'Really? Blimey, there's always someone worse off than you, eh.'

No idea if that's what they were really saying, but they somehow looked deep in conversation.