I was sleeping in my apartment this afternoon after an early morning out on the boat where I work and woke up to someone entering my apartment. I have a deadbolt and one of the locks that is a loop and hinge on the door frame that goes over a post on the door, and both were locked. Of course I retrieved my block 19 from the drawer in my nightstand and went out into the main area of my small apartment to investigate. turns out it was maintenance returning my fire extinguisher after the annual inspection, but if they can get past the lock that can supposedly only be locked and unlocked from inside so can a bg. I am hoping that someone has a suggestion for another type of lock that can only be unlocked or locked from inside for when I am in the apartment that can be installed without too much modification to the door so that I don't need to worry about someone entering and getting around the lock I thought could only be opened from inside. (sorry if this sounds rambling or confusing but this just happened and I am still waking up). I know that simple locks like this can be broken by a bg but I would like to at least keep the maintenance guys out so that I don't shoot thinking they are an intruder. I am sure the maintenance guy today got the scare of his life when I came around the corner and will hopefully think twice about doing something like that again.