Hope this isn't too far off-topic – I was sixteen, so not really a child, and it's not weird, just memorable and sad/funny.
My Mum took me with her when she went to look after her friend's very elderly father ; the friend had to go out for the day and didn't want to leave him alone. He must have been fantastically good-looking once - he had been a Royal Navy captain, and even in extreme old age he was tall, straight-backed, dignified. But now he had what I now realise was Alzheimer's.
I sat in the sitting room with him and he chatted to me. One thing he said was “My daughter bought me this new television. It's very kind of her, but the programmes on it aren't as good as on my old one …”
He told me stories of his travels and adventures in the navy. It was interesting, exciting, and he told them really clearly. I wondered why on earth people said there was anything wrong with him. After about ½ hour he finished - and started again, and told the same stories all over again, in exactly the same words, even the same gestures. When he finished, he started again, and told them a third time ....
Totally different topic, but on this same visit I smelt a bad smell, and went to investigate. I traced it to the kitchen, thought it was the drains, sniffed around the sink, found it wasn't from there. Eventually I traced it to a cupboard, found an open jar in there, called my Mum and said I thought this stuff had gone off. She said, no, it's meant to smell like that. This was my first encounter with Marmite.