like what has been said already, most youngsters i have encountered have been NERVOUS but i have still to actually be bitten off a carpet python.
I had a pair of adult carpets that would rear up at me but never actually bit me but certainly looked threatening.
The male i have now is totally tame and even at feeding time NEVER mistakes me for food, although i dont tempt that too much! lol
In my opinion you have to remember that reptiles are never truley tame and should be treated with respect at all times because they retain a lot of their natural instincts
Phil

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