Some of my snakes get used to desensitize friends and co-workers who want to overcome their phobias of snakes...and when they get to the point where they can touch them and even hold them, there's predictably a lot of shock and delight that they aren't gross and slimy, that they're kinda smooshy instead of like cold iron, and that they can see/feel them breathing. If you get lucky sometimes you can feel their little hearts beat. Never ceases to amuse me how stunned people get that snakes breathe.