One thing to watch out for is the sliding door you may have installed in the
back of the house. Sometimes people mount these backward with the sliding
part facing outward rather than inward. When you face the sliding part
outward it's easy for a burglar to lift up the door and remove it, allowing
easy and undetected entry. If the door is mounted inward, there is no way
for someone on the outside to grip the door to remove it.