I had a Burmese python for about a year. It started at 18 inches in length. A year later, it was 5 ft. My wife likes snakes. We have about 10 right now. The Burmese latched onto her hand when she dangled a rat by the tail into the terrarium. I had to lift the terrarium onto the nearby waterbed, then lift the snake out of the terrarium, then carefully manipulate the head forward to unhook the teeth from my wife's hand. A U shaped arc of punctures remained.
I decided the Burmese was probably going to be a hazard to the kids, so we found a childless couple that loves Burmese pythons for a new home.
Our biggest today is a ball python. The corn snake, rosy boas, sand boas and garter snakes aren't a hazard.