I have 3 DC, 20, 17 and 14. My older two have their moments- they are boys, but my daughter who is 14 can hurt me to the core with her mouth. To the outside world she is polite, well behaved, bright, hard working. At home she can be evil. Most of the time I handle it but sometimes it just cuts so deep. I know its her ager, her hormones etc and we otherwise have a really good relationship but my god it hurts. Just wanted to share - don;t expect any answers.