I can vouch for this. I worked at a Petsmart and if you look up my old threads regarding a few of my experiences working there you'll see. I had to bring a corn snake baby back from the brink of starvation. At several months old, this snake weighed only 4g. I was not allowed (by company policy) to feed it live, so I had to stress this snake out by tube feeding it and assist feeding it for months before it finally began eating f/t on its own. Also 75% or more of the ball pythons that came into the store did not accept f/t and a few under my care had to be assist fed because they began to lose a lot of weight.