I'm not meaning this to be a hard fast rule believe it or not. If you are having difficulty getting your frog to eat then I think someone should try anything and everything to get the frog to eat. But taking the frog out at every feeding will cause undue stress and over time will have a toll. I had two pacman frogs that were giving me trouble with feeding at various times. I tried removing them to feed them in a separate container and they would panic to the point of exhaustion. If, on the other hand, the frog sees this as a daily routine and doesn't seem upset by the transfer and its working for you then by all means continue. But to do this simply because you like to interact with your frog...I just don't think its beneficial to the frog. This is just my opinion. Although I do think we have strayed from the original question. How do you get your pacman to get used to being picked up? You don't...or rather you shouldn't.