Danny gets viviscted, but he willingly consents to it.
Imagine that as an AU - Good Parents Jack and Maddie Fenton, the GIW is completely disbanded alongside Liminal Amity Park and getting everyone to co-exist alongside Ghosts alongside the Ghost King, Danny.
So then, out of pure - morbid curiousity - Danny starts to wonder how his anatomy works as a Half-Ghost. X-Rays seem to work, obviously. But there's only so much they could learn.
And being a Halfa is already rare enough, considering there are only 3 in existence. Technically 2, since Ellie is a Clone. So, when Frostbite is with his parents and Danny is there as they're talking about his new medical needs ...
Danny pulls up the question about how his anatomy works, and when they've got theories at best - Danny suggests to dissect him.
Much to the horror of LITERALLY EVERYONE IN THE ROOM.
