I live in an apartment.
my ole lady has a key.
anyone crawling through my window, well, had to come up either a flight of stairs, or up the back balcony. Should be pretty clear cut what their intentions are.
however, I certainly don't wanna blast our maintenance man, coming in to service my A/C.
course, after hours, well, he better have brought some beer with him. (we can say beer right?)