Well, probably nobody today, but...years ago in Dallas, the police used to loan those little vibrating engravers so you could mark your SS# and/or drivers license number on everything you owned. You even got a break on your insurance rate if you did it. I still have a reel to reel tape deck I can't sell because it has so much personal info on it. A nice one (TEAC), but it weighs as much as a young calf. Maybe I'll start using it again. I probably still have a Hugo Montenegro tape or two...
Jon