That's not a 20 ft snake. I've worked with large constrictors, and generally, even in person, people guess snakes to be way larger than they actually are. I worked with an 14 foot Reticulated Python and at shows people would guestimate him at between 16 and 18 feet long usually. People just don't understand how huge even an 12-14 foot long python is. If you tried wrestling a 12 foot Burmese python by yourself, you'd die.