I guess Ill steer clear of the "who is the dumbest" part of the question and address the deer instead. I can say for fact that deer will eat some weird stuff. I have personally watched captive deer eat a fledging sparrow as well as some immature cottontails, and even eggs. Ill admit that captive deer might also have a boredom factor involved, but it is well documented that deer will sometimes take in alternate sources of protein. Seaweed with all the life thats in it, dead fish and even the tails of their fawns have been noted. The snake is a first for me, though. I can say if that doe was simply defending her young, shed use her hooves to stomp the snake, Ive seen that enough times...