In an ideal world that would be great but we dont live in that world do we? It also would be great if we didnt have to give a shot before they have eaten but that is not reality a lot of times either. Zoe was so skittish at first it was a mess trying to capture her to test and there was and is not a day that she would be amenable to getting her ear stuck and then eating and getting stuck again for insulin. I would NEVER make it to work! It is important to have a feel for how your cat responds to insulin so starting on a weekend is best if you work a M-F job like me. I have been trying on weekends to do glucose curves so that I can see how her BG responds. I feel comfortable now getting her first thing in the morning (she comes and gets me by 6 am and I test her and give her the shot and she eats. When she was struggling to eat what I was giving her, it was a little nerve wrecking, but she has adapted mostly to eating what I put down. I was too strict at first and the food issue was draining me but I have loosened a bit and taken advise of others and crumbled her favorite Temptation treats and put a little topping on both kittys wet food and they eat it or a good part of it. I reward Zoe with a few treats after shots too. Now she comes to where I sit to do the shots and gets on the sofa beside me just so she can have her treats afterwards. If she has had an off reading, I have run home from work about 4 hours later to check her BG (after she had one dip into the green zone of 68) when I was adjusting her dose. All cats are different just like people so how yours will respond to insulin may be different. I have had a few freak outs over things but mostly things get better as both you and kitty adjusts to the new normal. Others may differ with me on this but I would not stress about the "fasting" preshot, as long as you know she/he is eating after the shot. My cats are fed twice a day when I do the testing and if they dont eat all the food in their bowl, Zoe may be eating it before the morning shot but I feel like it is eaten up during the night long before her morning test. I do not feel comfortable taking up the food they do not finish when I go to work or to bed in case she has a drop in BG and needs something while I am not around, since she is not allow to free feed with kibble like before her diagnosis..