Recycling at Tescos
Me: It's OK, I've brought my own.
Cashier to Doreen (looking at my bags): Heard about this new thing, they've got going?
Doreen: What, the recycling?
Cashier: Yeah, that's right. Seen the T shirt?
Doreen: No. Nice are they?
Cashier: (Sniffs) Dingy green. I'm leaving mine.
Doreen: Why? Can't be that bad.
Cashier: You haven't seen what they've got on the back.
Doreen: What's that?
Cashier: 'Recycled bag'.
Given the average age of the typical cashier (ie about the same age as me) I think this little witticism may have back-fired.