I once stood up on the bus and banged my head. I said a very naughty word, and my mum said "don't you ever use language like that in my company again, I've a good mind to get the next bus home and leave you here" The school children opposite were open mouthed, I was 23 at the time
Mind you she also put out a lost child alert for me in Tesco, "we have a lost child in store. Her name is Shelley and she is wearing a bright green coat, could she come to customer service where her mum is waiting for her" Then over muffled laughter "she is 27" I got to customer services and they were killing themselves laughing. We were always losing each other. When I went to collect her ashes, they couldn't find them, they were mortified, I laughed until I cried.