I'm naive.

I live in an apartment complex that requires a fob and a code to get into and my housemate is a complete tit who keeps losing his keys so a lot of the time I have to leave the apartment door unlocked so he can get in and out. I wouldn't be naive enough to believe we won't get robbed but when we're on a middle floor and our apartment is right the way down the far end of a hallway with no sort of fire escape or other exit nearby I wouldn't rank our chances that high outside of getting untrustworthy neighbours who break in.

Which in hindsight happened when I was a kid so... yea... should probably get said housemate to stop being lazy and get a keycut.