Step on the gas! For example, put a leaflet in your keyhole and go to your door to read it every day. If no one takes it off for several days, that is to say, no one is at home for several days, which means that the family is away from home! Thieves can safely turn the window into the house to commit crimes!

Similarly, there are endless means, such as putting a bottle in front of your house! For example, there is an "X" in the square you said! The key is to test whether there is anyone in your family! Now that you've erased it, it means someone is in your house. Generally speaking, thieves will not patronize you any more!

Of course, we should pay attention to safety. There is always a phone call from a nearby security guard in the mobile phone. When people leave home, they must close and lock the doors and windows! Get on well with your neighbors and make them pay attention to you.