With me there is only my husband and he understands "I'm having a bad day" equals beware of mood swings. My daughter lives just far enough away she doesn't have to see me often and I can usually pretend while I'm around her. But when the depression started she was only 8. I would cry for no reason, sometimes all day. I taught her that when I did it was just a bad day and she didn't cause it. She got where she could spot it it and would say, "Mommy, is it a bad day?" I just didn't want her to think it was her fault. She was grown before the manic stages started.