We spray your car/s with a peppermint extract once a week on Sunday or another day of the week. We spray with a peppermint extract because, just like almost any animal besides humans, they hate the smell of peppermint and it messes with their nervous system making them back away. The thing is that, you know this if it happened to you, it costs a lot of money and is a major inconvenience because you need to get it towed and it will take a while to get fixed.