Hello again all, Sorry for not posting for a while, computer down........ nice to be back online. Anyway, heres my question. My friend is moving to a new flat and being security aware was thinking of changing the door lock. however this can be costly. I seem to remember from years ago you could buy a gadget i can only describe as a keyhole insert, you lock your door in the normal way, remove the key, put this gadget in the keyhole with a little key attached, then "locked" it in position and removed the key. Basically preventing anyone else from inserting a key and unlocking the door. Can anyone remember what these are called ? Can you still buy them and from where ? -a link would be nice if possible, as a search is'nt viable as i dont know what i'm searching for. Many thanks in advance. Dale.