Sure they are! A boa or python will just hug you to death!...................
A Burmese python has a good set of teeth. My wife dangled a mouse in to feed the Burmese python and it latched onto the joint at the base of her right thumb. I had to lift the snake out of the terrarium and carefully disengage the backward pointing teeth. A U shaped set of pin-point punctures remained. Easily cleaned. We found a new home for "monty" the next week.