She had an amazing ability to NOT play with us. "Mom! Come here! Play with me!" (or whatever). "I can't!" she'd reply. "I have a bone in my leg!" And then she'd make us feel her shin bone and we would feel so so so sorry for her with that bone in her leg.
Another thing she'd do is turn it around on the tattle-teller. For example, if I came running up to her complaining that Pete had just hit me, she'd get super sympathetic and say, "Oh, poooooor Kaaaaady. Now you go and tell him you're sorry." And I would!
And you know how when you hurt yourself, and you run up to your mom and say, "it hurts when I do this?" and then you bend your finger or whatever? She would always say, "well, stop doing that."
Now, THAT'S good parenting!