Is my neighbor asking for it?

I live in a duplex apartment, so there's a locked front door that separates mine and my neighbor's apartment doors. I know he dislikes me, very thin walls, heard him degrading me a few times. I don't like him either but try to pretend he doesn't exist. Anyway, when coming home from work today i noticed he had this warning sticker on his door (that he's got a burglar alarm). Apparently i got him paranoid or something, as its unlikely someone to break into our home, its somewhat of a desolate suburban area. Anyway i take this personally as prejudice from him as denoting me as a thief/ degenerate/ criminal. THe thought of breaking into his home never came to my mind but now i feel like he's asking for it.