8 or 9 years old went on a boat trip to Mull. Got off the boat and was walking as part of a large group up to a castle. I’d found the shell of a dead crab on the shore and was carrying it around, as 8 year olds do. My mum yelled at me to throw it away so I did, but I landed on the path and I was concerned that it might get stepped on 
. Picked it up again and got yelled at again so this time I gave it an almighty throw and it landed on an old ladies head. She had a bouffant perm which cushioned the landing of the crab and she didn’t notice and instead carried on walking oblivious. Mum made me go up and tell her. ‘Excuse me but you have an erm…crab on your head’.
Story still gets told at Christmas.