On tonights episode of Life's a Tripp, Bristol and Willow Palin commit child abuse

You can watch Bristol and Willow make disparaging comments about Levi in front of Tripp here

Willow and Bristol are nothing more than a couple of bitches who should have their tubes tied.

Making disparaging comments about your child's parent is child abuse.  Bristol and Sarah learned that from Sarah and Todd.  If you recall they made so many derogatory comments about Mike Wooten that the judge in the Wooten divorce case threatened to cut off Molly's custodial rights.