Gig 601XL Builder writes:

And if he can't stick himself in the leg with an epi-pen and continue to
fly I wouldn't even suggest that. I'd even go so far as saying he needs
to test himself on this with another pilot in the plane with him.

Isn't it possible to get some sort of medical waiver that allows you to fly as
long as you have a safety pilot with you (something like that exists for deaf
people, I think)?