Same here, I seem to be a little more sensitive than most. The mushrooms make my hand tingle little if I have to handle them. I go out of my way to avoid contact w/ my hammers. Like placing them at night when there closed more. They are on rocks that are big enough to hold them, but small enough to be move easily. This 1 is 2 big heads, w/ a bunch of baby 1's. Not a big hammer but his sweepers sure are big.
I just read something that said this behavior can be curbed, but not eradicateded.