Some of my corns are the laziest eaters I have ever seen. I get tired of holding the prey and letting Ember, my motley girl, sniff the heck out of it. I just end up dropping it in front of her and she starts to eat it right away.
On the other hand I have Morkai, my granite, who grabs and wraps so violently that he has almost fallen out of his tub.
For the most part, my corns are the laziest eaters I have ever seen. On the occasion I have fed them live though, they still know what to do.