[BjoernKW]

Although this statement of course has been made with tongue in cheek, it's worth pointing out that with modern devices borrowing a finger only works if the finger is still warm (which usually translates to the owner of that finger being alive).

[shoo]

microwave?

[BjoernKW]

I suppose that might ruin the fingerprint, but worth a try.

[ffhhj]

MacGyver would have used a hair dryer.