Each of these fears that people develop comes from past experiences with others. Today, people pay more attention to protecting loved ones and their homes. Many people use burglar alarms, lock their doors all the time, never open their doors to strangers and keep their windows locked. When you leave town, let your neighbors know you're leaving, then invest in a home security system. Both thieves and robbers often look for opportunities to break into homes. The robbers do a good job and find all the entrances to the house, such as doors, windows, roofs and chimneys. It also pays attention to all surveillance systems and does its homework to disable or prevent them. If your home is well equipped with alarms, cameras and motion detectors, thieves can think twice before searching your home. What most people don't realize is that thieves are smart people.