It's very common for "baby" snakes to bite- it's just their instinctive self-defense, & they're so tiny- I can't blame them. But by the time they grow up knowing us, it's uncommon for most snakes to bite (not just BPs, but rat snakes & boas & many others) assuming they're well-treated & not teased by clueless owners. And not counting accidental "feeding bites" which are preventable by us- oops! Not really the snakes fault.