Then buy a chain lock to use on the front wheel and frame.

The chain lock allowed the door to open an inch and no farther.

"You mean you'll let me past the sacred chain lock?"

Then, going to the door to the hall, he secured the chain lock.

When my child was small, I would keep the door locked at all times, including the chain lock.

Kyle slowly brought his arm up to the chain lock.

He could see that the chain lock wasn't on, either.

No, I have to say the chain lock was broken when we got here.

Let myself in, didn't have to bust no chain lock.

Without another word she closed the door, undid the chain lock and then allowed him inside.