Bring the kid to the Sacellum of Boethiah.
Take him dragon hunting, then when the dragon comes, run away ??
I don't think that would actually work, but it would
Be cool lol.
Won't work. They won't follow you and they're immortal anyway.
Adoption is even worse than marriage in this game. As least when you're married you have a way out- provided you didn't marry someone 'essential'.