I'll echo all the above. It's useful to know, but not desirable to use. Are you trying to save the weight of a harness, biner, and atc? Why bother, you're built like a moose. The best reason I can think of is that you want to be the equivalent of one of those civil war reenactors, in which case you've got a lot of great costume suggestions here. I've always thought it would be a great bit of performance art to wander the Dihedrals area at Smith wearing some wool knickers, a gold line, rack of pins, a pair of tricouni nailed boots, one of those jaunty caps with a feather, and speak loudly in a German accent.