I use interceptor and it is so small Maddie usually just takes it with no problem. I am a little sneaky though. I go to the fridge, she comes a running, and I get her worked up asking if she wants a 'goody'. I just stick down to her and she gobbles it up thinking it is a goody from the fridge. I do then give her a blueberry or carrot so I am not a liar.
