I used to drive home past a car that must have had a sensitive alarm, every day at 5:45ish I would pass this car and the alarm would go off. Eventually, the owner would wait out the front at the same time so he could disarm the car, as he saw me coming, to prevent it going off...

bahaha thats gold!
sometimes if i back in my garage my brothers monaro goes off, (its pretty sensitive) so i always drive in forwards.
i also worry about scorching the wall, as i rev to 8k, and dump it, to warm it up in the mornings.....