On a serious note. When my CAT1 toad was installed i opted for a level sensor to be put in which means if the car is alarmed and some pikey tries to lift the car up with a tow truck to pinch it the alarm is set off. Think it goes off after 5 degrees of motion is detected. Actually, thinking about it, it does work because i forgot to di-arm the car once whilst jacking it up and it went off. Nearly shit myself, but a good thing to have.