Not quite the same thing, but one time we got a call in the middle of the night from the fire chief. The sprinkler system had malfunctioned where he was working and they wanted him to come in and turn off the computers. I answered the phone, woke him up, and he told the fire chief that he was out of town, hung up the phone, and went back to sleep! Now this was before cell phones! I woke him up again (really made sure he was awake this time). He didn't remember the conversation!