I'd like some more detailed information on that procedure. Have you ever looked at a tic under a microscope? The have reverse angled barbs like a harpoon on their hypostome, the part inserted into our skin. That is why they have to be pulled out with an implement. I can't see them just falling off when they die.Since nothing is foolproof and some will bond to you; if I find an embedded one I use a Q-tip moistened with permethrin. Instant death and it falls off. .