I have 6 month old panther. He's rather shy, doesn't like me in his enclosure too often, runs away from me, that kind of thing. He doesn't make very sudden movements at all when I'm in his cage trying to feed him, unless…. its for larger prey. Most feeders I offer he will run to the back of his cage and come back and eat them once the coast is clear or move very very slowly toward them and eat them after a long while. He acts totally different toward large insects. Like I said he's only 6 months so I usually offer him medium sized everything. Occasionally you get the larger one mixed in and he seems to appreciate these a lot more. Large crickets,hornworms, and dubias he will actually come running toward me when he notices their size. I don't know if a larger insect triggers more of a feeding response , some type of instinctual, "eat the larger one, next meal might not be for a while" type of deal. Or, maybe, he just likes larger bugs, I don't know. Thought id share 
