I can totally relate. I hate to admit that I sometimes want to be mean to other people's kids. I never felt this until I had my own. I've noticed it is especially easy and tempting when their parents are mean to them. Its sad, cause they're the ones that need a little gentleness in their lives the most. I haven't found a good fix. I just have to watch myself and try to treat them like I treat mine even if I don't feel like treating them that way.