"The alarm's going off again!"
Sodding hell. That was the second time in as many hours. My other half dutifully went to check if there were any actual burglars, while I phoned the alarm receiving centre to let them know it had happened again.
It's the same room every time. When checked, nothing is there at all. No intruders, no bats, nothing. The doors and windows are securely closed. I think the problem lies within the detector unit itself. It has become self aware and is attempting to communicate with me via the medium of sleep deprivation.