my most important rule

 My number one rule is to not leave the door wide open. Why is this my most important rule? It is because my little brother always leaves and bugs come in and people just look right in. What if someone just look right in and notice it's not locked. That can be a huge problem that could involve in terrible things. I have a puppy that can open door if its open just a little. He can run out and get lost. If he see people outside and the door is open a little he go run out. He likes to move his head and but when he gets excited, but some people might take as a aggressive thing. It's hard to have equanimity when your dog is out in the world alone.