A day or two after the serrated knife incident, I burned my index finger on the same hand so subtly I didn't even know it for a while. Okay, I might have known that I was using a pot holder mitt that had a thin spot in it, and that pot holder mitt ended up in the trash, but I was surprised to wake up with a huge blister on that finger, two days later. Of course the blister broke off, then the raw sore rubbed against something, and well you know. Never use a worn oven mitt.
The thumb, miraculously, is almost healed.