"You annihilated the healing energy, rather than it entering you. Well, that's a pity, and another method of healing excluded..."
"It's unusual for me to try and see things from the perspective of somebody who cannot be healed, who must needs fear injury so. It seems like it would exclude a number of fun activities in life. But let me try..."
"Oh, interesting again. I cannot touch your hair with my economicmagic hand; economicmagic is annihilated by your hair the same as it is annihilated by any other part of you. Amazing. May I sever a small lock of your hair, to see if the effect persists when it is apart from you? Either way, we can use your hair to test and touch the more dangerous energies I would try next, if that sets your mind at ease."