The short answer is NO. What would cause the snake to regurge/become injured/die would be mishandling on the part of the owner. Picking the snake up while still swallowing, putting pressure on the "mouse bump", dumping the snake back into the viv... instead of allowing the snake to fully swallow and crawl back into his viv from your assisting hand or directly from the tub. None of this is a direct result of tub feeding; all of it is owner mishandling. And I don't know a single person who has ever had this happen (all are Corn Snake owners).