My favorite that you hear for almost every reptile is that they will only grow to the size of their enclosure. And for garters, that they eat crickets. Which is ridiculous. When I got my BP everyone was telling me to be careful and not let it eat me because it was like a week after that African rock python killed two kids in Canada. At the time she could fit in the palm of my hand.

Another fun one for snakes in general is kind of localized to the rural South, but people say that if you have a snake in your house and bake a chocolate pie and sit it in a cabinet, the snake will go in and you can trap it by closing the door on it. Weirdly, this actually seems to work since it creates a heat source. I don't know where people got the idea that it specifically HAS to be a chocolate pie though.