There is a famous picture of a large snake in the everglades(I assume a burm) that tried to eat an alligator that wouldn't quite fit, and the entire body split open. I'm 50% sure that story and pic is real.
When I mentioned issues wit corns being to overfeed, I meant feeding too frequently/too much so that it becomes obese. As mentioned before, it has similar problems in snakes as obesity has in humans.. Sudden death via heart attack is not uncommon of among snakes that are way overweight.