I was sitting in a doctor office waiting room this morning.  out of boredom I decided to call the surf report to see what the waves were doing that day.  I called the number absentmindedly and when the recorded voice said, "hey there..." I said "hey!" back like it was a real person i was calling, and not an automated recording.

I panicked because there were other people in the room with me and they would know something was up if I sat there for two minutes in silence and listened to the voice recording.

So what did I do?  What else could I do?  I said out loud, "Oh, okay, sure no problem, I'll call you back later" and then hung up the phone.  Crisis averted.