A Double Adult Joke in One
Dr. Bill’s bad parent test was hard for the kids to understand. To begin with, how old were you when you knew that it was Dr. Phil and not Dr. Bill? Most of this cartoon’s audience did not know this. In one of the bad parents’ tests, Dr. Bill talks about children who use a lot of tissue paper and don’t want to be spoken to by the parents.
Source: Reddit
He also talks about children who often tell their parents that they are busy when asked to do something. Timmy’s parents tick the boxes when Dr. Bill talks about children who use many tissues in their room alone. Some adults might have cringed at this part.