Teeth can be hair-thin, even from a good-sized snake. If you’ve ever had a fine cactus spine/hair, sliver of glass, or insulation fiber, its kind of like that.
Anti-coagulant is usually a venom component. Bleeding is usually because bites consist of a bunch of punctures, and are usually on or near your hands, which have plenty of circulation, especially when the surprise of a bite gives your blood pressure a jolt.
The snakes most likely to bite, IMO, are scared babies. Which is usually not a big deal, and with gentle, consistent care and handling they grow out of it.
Then there’s the bites that are mostly human-caused, where the snakes
* aren’t handled consistently
* aren’t handled respectfully - startled, handled roughly, not supported, etc. Grumpy while in shed is a small sub-section, as sometimes handling while in shed has to happen
* feeding accidents - like the time I reached into my Woma python’s enclosure on feeding night for another group of snakes. He could smell food, sense warm thing in his enclosure, and went for it, then let go in confusion - Hey! That’s not my mousie!
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