Originally Posted by AdamLein
Shame about the pneumonia thing. The association between drafts and pneumonia is an old wives' tale and has no scientific support. The National Institute of Health does not list cold air, moist air, drafty rooms, or proximity to the sea as risk factors of pneumonia (Pneumonia - PubMed Health
That´s correct. Furthermore, iodine contained in the wind coming from sea will even help pneumonia problems.
But maybe it doesn´t make too much sense to bring forward arguments one after the other on a trial level. Say, bonmot, do you have a friend, who still is good friend with your Ex? Wouldn´t it be possible to arrange a dinner with him (or her) together with your Ex right there or the boat? (Without your son?)
Both you and your Ex want the best for your son. Maybe on this occasion you could - supported by this friend - install a new kind of relation between both parents, which would be based on acknowledgement of your shared responsibilty, which both of you still have in common. Having this dinner could maybe show your Ex that living aboard is nothing dangerous. The presence of a neutral acting common friend could maybe help to negotiate further arrangements without falling back into aggression.
Best wishes -