My neighbor's dog howled and whined from 7:30-9 this morning. Building quiet hours go until 8 (it's in the lease), and I know for sure dogs aren't allowed in the building and my landlord would be pissed if he knew they even had one let alone how noisy it is (for example, I'm not allowed to play my flute at any time of the day because it would disturb the neighbors). They moved in a couple of weeks ago, and though the dog hasn't woken me up before, it's been noisy at other times of the day (usually in the evening). What would you do?