I believe you without a doubt, I studied electronics so I have two or three elements for answering this as well. I'm just a bit surprised about the numbers you give, like, 0.1A can cause death, I would have said 1A, and 10mA cause pain/burn, I find that very surprising.
About the Taser guns, they're in fact 2 little bolts that are fired simultaneously a bit like with a crossbow (but with less strength of course). It DOES perforate the skin, since it is also supposed to pierce your clothes.
And YES, there HAVE been accidents with this gun, and people died. I call that an utter stupidity.