You nailed me

There is nothing worse than hurting your child. Like, say, cutting a fingernail a bit too short so that it's a little red and painful. There is certainly nothing worse than that.

Except having your child remind you that you hurt them every five minutes. For the rest of the day. And the two days that follow.

"I know, I am very sorry that I cut your fingernail so short."
"Why yes, I did apologize. Repeatedly."
"Yes, I am, again, sorry that your finger hurts."

Now please excuse me while I melt down my nail clipper into something more useful, like a paperweight or an icepick.