Once when I was talking with my mother the subject of “Where were you when you heard that Kennedy had been killed?” came up.
“Oh, I remember it so well, we were at Grandma's with you and your brother when they said it on the wireless.”
[headexplode] “What!? I wasn't even born when Kennedy was killed!”
[confused] “Sure you were.”
“John F Kennedy was killed in 1963!”
“John? I'm talking about Robert.”