Well, I find the scale is only as nice to me as I am to it. Did that make sense? For the most part anyway. There are times when I am extremely nice to it and it takes a few days to be nice back.
When I eat right and exercise and drink plenty of water, it's extremely nice to me. But then, when I've been nibbling a bit too much and get a little lazy, it turns all evil on me. Real quickly too.