User calls in and tells the rep, "I can't find my car, can you please honk the horn?" So the rep does so.
An hour or so later, the user calls in and says "I can't find my car, can you please honk the horn?" Once again, the rep honks the horn. There were two or three more calls from the user in the next two hours so he could "find his car." The rep finally asked the man "Sir, are you at a party?" The customer admitted he was, and asked the rep how he knew. The rep told him "because you've been parked in the same place for the last five hours."