My 8 year old daughter, who has always been very well behaved and never had any kind of emotional or behavioral issues, recently BIT her best friend, a 7 year old, who spends quite a bit of time with us for playdates, cheerleading practice and sleepovers. They usually play wonderfully and have been friends for 4 years. My daughter is basically an only child (she does have an older sister but she is 15 years older so they only lived together when she was a toddler). Her friend has a new baby sister, 7 months old. When I asked her what happened because her friend had a big welt and purple bruise on her arm, my daughter said, "She was ignoring me so I bit her." You BIT her? Omg! I immediately pulled her pants down and spanked her butt right there in the driveway. Then I told her how horrible what she had done was and I was embarrassed and ashamed of her for this behavior. She balled. Her friend did not cry, but the arm was very sore and bruised and red. I took her friend inside, put ice on the injury, sat her down to watch cartoons and texted her mom a photo of the bite and explained what happened...then I brought her home and did not let my daughter have the planned sleepover. I also took away her iPad for a week and grounded her from any playdates for 2 weeks. Her friend is supposed to get off the bus with us Mon-Thurs for cheer practice bcuz her mom works so I drive them to practice and she brings them home...and they have always sat together on the bus to school in the a.m. Her friends Grandma is our bus driver. This morning Grandma was reluctant to give me her friends cheer bag and to allow her friend to come over this afternoon, which I completely understand...and she also would not allow them to sit together today bcuz she cannot keep an eye on them while she's driving. Her friend sat with her little head down looking sad and my little brat skipped down to the middle of the bus and sat with other kids laughing and smiling like nothing. I am worried that she does not understand how horrific what she did is! I am worried she will do this again! Her friends mother just told me she ALSO spit water at her friend at cheer practice the 1st week, right in front of the Coach! Noone told me about this or Id have reprimanded her for sure! I have ALWAYS gone over bad behavior, teasing, bullying and sticking up for others if you see it or telling an adult with my daughter...and several times when she was younger she did tell when she saw teasing...I thought she was the good kid! I am just beside myself over this and am not quite sure how to handle it. I don't know what on earth would have made her do these things...spitting and biting! And to her best friend who is such a nice kid! Does she need to see a behaviorist? Any advice would be sincerely appreciated...