Yes! I loved snails so much as a kid, so I would collect them from the road when I walked to school and put them in the bushes outside of school grounds before the bell (I didn’t like the idea of them getting squished by traffic). I never really had a way to carry them so I’d just stick them on my arms or really wherever. Sometimes when I was putting them in the bushes, I’d notice just a teensy bit of blood on my arms where they were crawling around. I thought it was from the snails at first, but one time I kept a particularly fat snail on my hand and kinda watched him while I walked. He did the little chewing thing on the back of my hand for a bit and afterward, there was just a teensy bit of blood where he bit. The sensation was barely even noticeable, to be honest. A bit like a very tiny cat tongue—not really painful, just a bit scratchy.