Amanda was nearby when it all went down, and ran to get me a bandage. It's almost completely healed now, thankfully.
I guess the incident made an impression on Amanda, because several days later she was still talking about it ...
Amanda: Mom, remember when you shredded part of your thumb with the cheese?
Amanda: Wouldn't it have been funny if there had been bloody skin mixed in with the cheese?
Me: Um, sure. Real "funny".
Amanda: Well, maybe not that funny.
Me: Yeah. Maybe not. At all.