I work with wildlife – what happens in ABA would not fly with the modern animal training community. Animals are allowed to quit training sessions whenever they feel like it, nothing is withheld, repressing harmless natural behavior is wrong. When the kinkajou I worked with had problems with sucking his paw, he was given things to do more fun than paw-sucking, not hot sauce on his paw. Literally, autistic children are treated worse than animals.