Stage III will involve euthanasia when the shrooms fail.
Fail? I suppose that may be a way to describe the results.
To use Psilocybin on a patient who truly has mental issues sounds like a very bad idea. Dealing with the effects of that hallucinogen on a stable mind is rough enough, but a mind that may not be firmly grounded in reality may have unpredictable results.
Reminds me of L. Ron Hubbard’s Mission Earth.