Through the "crouch" or the "crotch?" That's what we called the "hot pants rappel." One to be avoided at all costs. You can do it, and have to be real careful that you get the wrap around your body and over you shoulder so that the bottom rope is under your cheek, not in the crack. And you move very slowly, this is in emergency rescue no-other-options only situations.

I looked it up, had a nagging feeling. . . the top of the ferry building was lead. They've recast it with nickel and copper, I think, to retain the look but be a little more environmentally friendly.

SRS