It's silly how these things are swept under the carpet in this way. They are, apparently, not serious enough to be recalled but so serious they cannot be discussed, excpet in occasional hushed tones.
My older brother would occasionally bring up things like these, usually in a crowd of boys, to embarrase me. I know my older sister sometimes use to try to have one of the hushed discussions with our mother, but was generally told to stop, when it became obvious that I was near.
We do have a rather long running thread on this very issue, which is stickied. It's quite a eye opener and shows that most have pretty similar experiences. That is somewhat conforting at least.
https://www.susans.org/forums/index.php/topic,52662.0.html