If it still hurts tommorow I would most definately get your wrist checked.

Here, in Australia, that kind of bite would be an immediate hospital job. We have a nasty cat borne disease called cat scratch fever that humans can get from bites and scratches - mostly from stray or feral cats.

I am sorry that Mr Magoo did that but it must be pretty scary for him being blind and only knowing a small space well. I am sure he will get better.