Game Theory: Five Nights at Freddy's

We were wrong about the bite (1x12)

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All this time, I've been doing lore-based theories on FNAF, trying to piece together clues about the Purple Guy, the missing children, the Crying Child, Psychic Friend Fredbear. But today, I'm tackling the series from a different angle -- an old-school angle. Today, I'm looking at the SCIENCE of Five Nights at Freddy's, to see whether n animatronic would really have the BITING power necessary to break through bone. Could the bite we see in FNAF 4 really happen? Or is there something more sinister going on in the walls of Fredbear's Family Diner?