Sort of. Indeed I've ended up with what I went shopping for, but no money left my hand.
Go to Halfords in search of tracknuts, F & R, for my fixer. Can't see them on the shelf, so ask the helpful woman behind the counter. Yes, she says, they're out the back. They've got Rear ones but not Front. Fine, I'll take them.
She reappears with Front, not Rear, as she'd misremembered. Still fine. Her colleague does the scanny stuff at the till, whilst I'm ready to show them the web price (£2.99) in case of discrepancy. And there was discrepancy, as they show up as one penny a packet. Somewhat puzzled, I ask why. They'd bought a load in to fix peoples bikes who had assembled them themselves, and done a poor job, but had too many, so they're obsolete and marked at 1p per packet. Ooh goody. Except I only have a tenner. No, it's OK she says, there's a 2p piece sitting on the till, they'll use that. I complement them on their business model, but suggest perhaps it's not sustainable.