A lock is only useful when it is fully-functional, which means there's no use keeping a broken lock attached to your doors. Furthermore, a door isn't much if you can't lock it shut. If the locks in your home, office, or car are showing signs that they are falling apart or are not working properly, it's important that you get your locks and other security systems fixed as soon as possible. If you feel a lock is nearing its expiry, get that checked as well. Bear in mind that burglaries, break-ins, and other property crimes can happen anytime, and often, without warning. Don't be a victim. One way to protect yourself is to get your locks checked.