I wasnt going to pull on the hermit, I was going to crack off the shell. First you take needle nosed pliars and breack off all of the edges of the shell untill its small enought to get ahold of in the back of the jaw, now comes the part I developed when I showed my little brother a snail from the inside, I took some of my surplus Malaysian Trumpet Snails (grr I hate them) so you slide the shell to the back of the jaw and put your finger in to the front of the jaw,then you squeeze and the shell cracks under the presurebut your finger stops the pliars from going so far that whatever lives inside is mutilated, and in the end you have a snail thatsperfect forscientific examination. Thats what I was planning on doing for the hermit.
Edit: Ive seen em change shells a few times in the past 4 days.