... the knack of closing our front door from the outside, which neither me or 'im can do since it was installed!
The only thing I can think of as to how Jess does it without a key, is to hold the lock bit in as she closes the door or something! Even that doesn't seem possible though 'cos she would have to let go of the lock before the door was closed and she would have the same problem as us then!
I'll have to ask her at some point! lol