i was cleaning a customer's house today, noticed they had new patio doors, didn't think any more about it, i then heard what i thought was police sirens, when i got round the front i realised it was the alarm going off.
i haven't had a problem with the alarm before, so can only assume it was something to do with these doors.
i was ringing the police to let them know what had happened, when a pcso strolled round the corner, the alarm then stopped so i left her to it, not one neighbour came out to see what was going on.