| My mate bought a 'special' (expensive) animal tolerant alarm system and had it professionally installed.
Had it done about 6 months ago, and though it's been 'tweaked' by the installer many times since then, he still gets to go home most days to switch it off.
In terms of installation costs, his time and petrol costs when dealing with repeated false alarms, etc. it would've been cheaper for him to be burgled 3 times a year for the rest of his life. | 
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