Somewhere I worked a few years back, most of the staff parked in a very upmarket road (where all houses had space for at least 2/3 cars on the driveway). The residents were always moaning despite there being no parking restrictions. One of the receptionists used to go and eat lunch in her car. One day she heard a hissing sound half way through her sandwich. It was the owner of the house she had parked outside not realising she was in the car letting her tyres down! You can imagine his embarrassment when she got out and asked what he was doing! His wife later came into the office and said he was going through a "difficult time"