Have you ever wondered why your furkid all of a sudden has a black scab under his/her chin or somewhere around their face. For some reason eating or drinking out of plastic bowls can causes this abnormality. Never mind does it look unsightly to you it is very uncomfortable for them. So stop using the left over Dairy Cream container or the plastic bowls from the pet store, and switch to glass or metal. See if you notice the difference in their complexion.