I don't know what the deal is with the PA system at work, but it provides us endless entertainment. Apparently the receptionists at the front desk have a hard time telling if they're dialing a number or putting the phone on the overhead, because we'll fairly often hear a beep followed by a voice saying "hello? Hello?" which is very humorous. It's even better when people start yelling "hello!" back from their cubicles.
Today was even better. We heard the beeping noise that indicates that someone is about to make an overhead announcement, then a pause, a big intake of breath, and a sneeze. And that was it. after a moment of stunned silence, laughter erupted around the R&D area. Then the petite little Italian woman who works two desks down from me called out "bless you!" and the laughter commenced again. Random sneeze announcement. Made my whole day.