20 odd years ago, on a walking holiday in the lakes with my brother...
After three days of steak pie, chips and beans or the like, washed down with several pints of beer, I was on fine form on the day in question which had featured regular 'interruptions' much to the disdain of my sibling albeit we were out on the fells with no-one else around.
Cue stood in the supermarket queue in the Co-op, Coniston and he could see from the look on my face that another was brewing.
"Don't you dare" he said - which of course made me laugh out loud with the inevitable explosive consequence.
I walked out, still laughing uncontrollably, leaving him stood at the till with the cashier and several people in the queue behind him.