When the dragon was flying, its head would clip through ceilings:
There’s a head object:
It has a collider. My first thought was to turn off the existing one and add a new one blocking the dragon’s horns.
It worked for the clipping problem, but broke the dragon’s movement. The dragon acted as it does when the ground layer isn’t set right, as explained on this page.
WTF? How could that change to the head mess up locomotion? I don’t know.
What worked was adding a child object to the head:
All it has is a collider sticking up out of the head.
The tail has the same problem:
I added a similar thing to the tail:
It had to be fairly wide and long to work:
I haven’t found it to mess anything up. Yet. I’m not confident.