A packet of wotsits turned out to be just a packet of wotsit, with only a single crisp inside.
Andy Stubbs, 43, was looking forward to tucking into the snack when he gave the bag a shake and noticed it seemed very airy, despite being puffed up with air.
He could not hear any crisps rattling against each other, and began to suspect he had an unusual bag on his hands.
The software developer and dad-of-two at first wanted to keep it as a memento (whatever floats your boat) but then he was egged on to find out when was inside by sons Oscar, nine, and Harry, five.
The family gathered round the kitchen table and filmed the moment Andy opened the bag on Saturday, and a single, perfectly-shaped wotsit fell out.
Andy from Sidcup, south-east London, said: Its not often you get a one-wotsit bag of wotsits, is it?
Id bought a multipack for the family a couple of months back, and Id gone to get a bag of Wotsits because – why not?
Lo and behold – when I held the bag, I could feel it was full of air. I shook it around, and realised there might only have been one wotsit inside.
So I showed it to Jane and the boys, and we all cried our eyes out.
Harry really wanted to open the bag, mostly because he wanted to eat it. But I said that it would be funnier to keep it as a memento.
When Jane saw in the news about the guy who only had a one-bean tin of baked beans, she encouraged me to open it up and see.
When I opened it, there was something slightly anti-climactic about it. Wed known for a while there was probably just one wotsit.