(I checked the 'Cat for other cell phone threads; found a few of them but none pertinent.)

Last night at 9:30 in Juneau, Alaska, I called a friend's cell phone. (He lives up the street.) When he picked up, he sounded sleepy and I said, contritely, Oh, have you already gone to bed? Shall I call back tomorrow?

He said, Ebbie, I'm in Ohio.

Luckily it struck us both as funny.