DN is late 70's - he whistles all day long and very loudly too. He is very active and walks up and down the side of the house multiple times a day whistling tunes.
We are due baby 2 soon and I just know come the summer months when they're sleeping regularly in the day time still, the whistling will drive me crazy when I'm trying to get her off to sleep. Her room is next to the walkway..
Not only that but it's frigging annoying for us anyway, I feel like we would be considerate enough not to make noise that neighbours can hear constantly, even if it is a more 'pleasant' noise (unfortunately it's not pleasant to me anymore).
How can I drop it into convo without sounding harsh? Also he clearly has a habit of doing it and it'll be hard for him to stop, but I feel it needs to stop because it's so annoying!