Thumbprint activated safe? There such a thing in the real world yet? I would had to see what would happen if you had to get into that with a cut thumb.
Yep, they're real. I bought mine at a local gun store, but you can find them all over the Internet as well:
http://www.biometricsdirect.com/fingerprintsafe.htm It's built out of heavy gauge aluminum, so it's not a real "gun safe", but it's more secure than dropping my .45 in the nightstand drawer and it keeps the kiddies out. I actually bolted mine into the concrete beneath my bed, so it's readily accessible and yet can't be stolen without a crowbar.
As for the cut finger question; my safe can hold up to 20 fingerprints (the one on that website says 15, but my manual says 20). I actually programmed both of my thumbprints, and the prints of both my index and middle fingers into the readers. As long as I have hands, I can get my gun :)
I realize that some gun owners have a problem with ANYTHING standing between them and their firearms, but I have young children and my wife insisted that I secure my guns as soon as the first one started crawling. $400 isn't cheap, but it was a decent compromise and it beats worrying about trigger locks.