Just saw this in AT&T's Wireless Terms of Service for California customers:
You are not liable for charges you did not authorize, but the fact that a call was placed from your phone is evidence that the call was authorized.
Let me see if I've got this straight: if someone makes an unauthorized call, I'm not liable for those charges, as long as the call wasn't from my phone.
. . . It turns out that this isn't quite as stupid as it appears; it's actually just missing a clause. It should say: "[...] the fact that a call was placed from your phone is evidence that the call was authorized unless you reported your phone lost or stolen."
The rest of the paragraph (which I left out for comic effect) does explain that after you report a phone lost or stolen, you're no longer liable for charges. So the information is all there; it's just poorly presented.
So I figured it couldn't hurt to mock their presentation.
(I'm not disputing any charges, btw; this isn't anything to do with me. I just happened across that paragraph when I went to pay my phone bill, and was amused at how Catch-22/Brazilish it seemed.)