T.C.
I think she is too young to go in the corner, or a time out. I know it hurts, physically, but can you try to ignore it? If I give special attention to anything my 18 mo. old is doing, she does it more. She thinks it's funny. I would really try to ignore it and see if she stops. A baby this young cannot be punished like a toddler, they just can't understand. If you notice she's about to do it, distract her or move her away from you towards a toy. She is probably only doing it to you b/c you are reacting.