Here's what I learned about administering the juice:

1. It worked best when I was calm & quiet, without the television or visitors or other distractions.

2. After a couple of times, the needles begin to dull--so you have to keep a fresh supply.

3. The little "tent" of skin & fur you pinch before you put the needle in has to feel just right--so that the needle lies flat, parallel to the spine, and not poking down into more sensitive tissue, definitely not going all the way through & through.

4. Sometimes it can feel shocking if the fluids are room-temperature. So if you let the bag rest against you skin (maybe inside your shirt) for a bit or let some warm water flow over it, that can make it more comfortable. Not hot, by any means--just warm.

5. Talk to the kitty & tell her/him how good they are.

6. I found that with the valve wide-open, I could get about 100ml saline in within 60-90 seconds. I hung the bag on a photo tripod and lay right on the floor with my kitty. She actually purred as the juice flowed.

7. When I withdrew the needle, I didn't see any blood, but some juice might dribble out. Best thing for that was massaging the area, keeping the point where the needle had gone in elevated.

8. The cat will probably tolerate this better if their back is to the bag & tube & all. Too clear a view of what's happening can be upsetting.

9. The volume of fluid may create a bulge before it is absorbed. It's a good idea to pet the cat & hold 'em & sort of help the fluid to spread around inside.