Does anyone else get really annoyed when the phone rings, you pick it up, and the person on the other end says, "Who is this?"

Especially when a) they call you on your cell phone and b) they call you when you're just, just, just waking up. Bah. Had to have an extra large cup of coffee this morning to get over my irritation at said individual who woke me up, wouldn't identify himself, yet insisted on me telling him who I was.