Wow... 26! You got me beat...
I'm rather surprised at his offer of the homeopathic remedy for adrenals. He gave me Cortef when he suspected I might need it. Before he wrote the script, he told me that many people have a fear of cortisone and asked me how I feel about it. He didn't mention any other remedy for the condition. There must be a reason the HP remedy is his first choice for you in particular; but to me, he doesn't seem so set in his methods that he won't have an alternative for you. I'm nearly positive that if you simply state your concern, he'll offer you something else. He probably has vegan patients who would also object to taking an animal product, and I'm equally sure he could recommend an alternative for them.
So far, I've never seen him even anywhere close to angry, so I think you shouldn't worry about it in the least. He's mentioned to me several times that I should take flax oil. If you've seen the latest thread about flax, you'll see why I've refused him each time. His face never registered any emotion at my reluctance. It was more like he was interested to learn about my reaction to it, because he'd never heard of it before.
I'll be interested to know what he does for you... just curious.