I had the owner of a car sales showroom we clean turn up, screeching tyres as he came into the car park and in a mad panic a few weeks ago. The alarm at the showroom is monitored by some company in Dublin apparently, and they'd alerted him that both the burglar and fire alarms had gone off!
Needless to say, there was no fire,.. and the burglar alarm wasn't even switched on when we'd arrived,... just some weird fault in the system! He was laughing an joking with me afterwards,... but what he was saying down the phone to the poor guy in the call centre couldn't be repeated here!