[Gearbox]

That all makes sense. Thanks for all the info.
Since I don't do it too often, and when I do I don't ever hold it until it's painful or anything, I should be fine.

One more thing I wanted to ask, which I meant to include in the last post, is regarding mouth soaping, and specifically are there any soaps out there at all that would be safe for that. I know most would be very hazardous, and would be a definite 'no', but I'm wondering if there are any exceptions, since the idea sort of intrigues me, and because I recently talked to someone who did it quite a bit, and it got me to thinking.
I know this one might just be a hazard across the board, but I wanted to make sure before I lay it to rest.

Thanks.