Jaws

Mary has two of the most patient and forgiving brothers. This is what she did to Sam's leg today (if you click on the photo to enlarge, you can see Mary's tiny little teeth marks)~
And here's the culprit, after Mommy hugged Sammy and told Mary, "No!"~

I was so impressed that Sam didn't automatically hit her or something, out of pure physical instinct. She's bitten us all now, more than once. I know she'll grow out of it, but in the meantime, she's dangerous to be around when she's frustrated.