Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
That's why they usually say the product deters theft, rather than promising outright prevention. There has never been a lock that couldn't be picked, nor a safe that couldn't be cracked. However, what you try and do is to make your goodies more trouble to steal than the other guy's goodies.
If you have a locking cap (or alarm, or the club, or an unfriendly dog, or whatever deterrent you choose), but the next vehicle doesn't, the perp will usually take the easier route and pass you by, provided that a similar gain can be had with noticebly less risk and/or effort.