The second-oldest profession.

Without which the first wouldn't have been possible.

Don't recall where I found this first, but I'm sure there's no Creative Commons license. I make no money off this commentary, but Ken, I can get you about anything you want with a phone call, if you like. I'm a cab driver, everyone knows how much we really make. Or just move into the extortion chair at the right dispatch office. You know how to find me.