Is this why mumsnetters don't like to open the door when they are not expecting anyone
The Crazy Step-Father
Parents can come up with all sorts of make-believe rules and reasons. All you can do is agree with them. This guy shares that they weren't allowed to use the front door. Their stepdad kept the key, and even visitors had to go to the back through the side gate
His stepdad told them only cops use the front door. Anyone who came to the front was automatically suspicious of him. So, they were to never answer the door to strangers.