I'm unsure whether this snake was used in the owner's reptile programs or not; TPRSes are not a native species here obviously, but I think if he were a program animal, it would not be as frequent as some of the native or conservation species. But, it's very possible he has been, as that is the owner's job.
The snake had an initial owner who had him the first two years of his life, and is now with his current owner (for 7-8 years). I appreciate the philosophy of leaving him alone for a few weeks no matter what, and I will be pretty busy over the next month, so I will likely be not interacting with him as much when I first get him, anyway. At any rate, I do think I can read what the snake's attitude will be and I'll adjust the interaction level for him.