I just tested the vinigar in my own eye... Half vinigar half water. It did sting right as it hit my eye, but only for a split second.
The tree is not more important than my cats, however; I was the one who wanted the cats, not my dh, although he's OK with them (and they love him more than me...) And he wants them off the tree because of how badly they are messing it up. My cats are not happy laying under the tree. They crazily climb all the way to the tippy top, out the branches, knock down all the ornaments and light strings and are now breaking the whole tree, bending all the branches etc. It's an artificial tree that we have sprayed thorougly with two different kinds of cat spray to keep them off, and although they don't like the smell, they will not stay away. I suggesed that maybe we don't have to have a tree this year since the kittens (6 mo. old) are at the peak of energy and playfullness right now. But they are desperate to keep the tree up. That's why I've been looking into what we can possibly do to keep us all happy. Although I would have loved for my cats to be able to be completely free and have all the fun they want, I do feel I need to consider the feelings of my family as well. The cats are important to me, but my kids and dh much more so. The Christmas tree is on the bottom of the list for me, but it still is pretty high for my kids.
If the vinigar is a bad idea, then I understand. I'm just trying to find a way that works for all of us. Please don't be mad, I just thought I should ask.