Have you ever apologized when you're not wrong?

Yes. And usually because I cared about the person more than I cared about being right. It's rare but it happens.

I have to keep the peace

I did it in the past and felt awkward after it. One shouldn't do that

I need say nothing when I am 100% true.

If I am only 99% right and argue I do apologize when shown the 1% of something where I was wrong. I don't mind if the other person chooses to remain 99% wrong.

I didn't want to be blocked, and I wanted my old friend back. I didn't get blocked, but I didn't get my old friend back either and I was blocked by others. But I won't apologize again.

I don't even apologise when I am wrong, I'm not a homo!

Yes. Rather have peace than divided over a petty issue.

I'm Canadian

Never