I want to say I did, because I remember the taste of bar soap, but must have blocked it out.

I did once. I called my brother the C word, without having a clue what it meant.

🙋‍♂️ Just once. I don't remember what it was I said, but I guess it was bad enough to my grandmother to earn that.

Once. It was awful!

It was done as a punishment for using bad language.
You could probably substitute it for a m***** fu**** hot chilli nowadays...

That is not something my own parents ever did. My brother and I were "punished" when they thought we got too "mouthy", but never that way.

Yep
Palmolive dish soap
Usually before pop tarts for breakfast

My mother used dish soap. She'd put a drop on her finger, then hold my by the hair and scrub my teeth with it.

I did and it tasted so good c:

No, my parents never did that, thankfully.