How do I deal with this? The contract specifically says this is a non-smoking house, but someone (and I know who, because they're the only person living here who does) is smoking in their room. I can smell it and it stinks. My passive-aggressive side is all for printing off the contract and highlighting the relevant paragraph, then sticking it to their door with a note. (I don't do confrontation.) Or I contact the landlady and let her deal with it.