Now and then one or two of my boys seems off put by the touch, but it’s for their own good. I’ve even seen snakes not like the touch of arm hair. I’ve been using moss as long as I can remember, to me it’s almost an essential if your using tanks or are in a very dry area. Sphagnum moss is best, either Zoomed or some of the cleaner stuff you can find bagged at Home Depot.