I know it’s like shutting the garage door after the bikes have bolted – but i do here this sort of thing happaning an awful lot – and i’m fully aware that this is of precious little help or comfort to you know but if i had (and i do) have that amount of nice kit in my garage i’d think about (have already) intalled:
The annoying noise they produce will at least wake your neighbours and scare the blighters off.
Why don’t people fit them out of interest?