smoke alarms went off during the night for no fucking reason

was literally for like 3 seconds, enough to jump me out of bed - happened twice at about 2am and 4am.... i'm fucking knackered

wasn't a battery chirp, they're all mains powered and interconnected too so all the cunts went off

this has happened once before a few years back and went away, i blamed spiders - those long legged thin ones, but never known for sure

livid