The perils of "just winging it"

"…and the only person I could find was this phone number."

I said those very words this morning in a voicemail for a receptionist at a large university. I really should've just hung up, written down what I wanted to say and then phoned again. But I believed the curse of voicemail screw-ups was long gone and so I spoke off the cuff. And that's where the above line came in.
Sigh.
The voicemail curse is alive and kicking me in the rear end.