Linda and Carrie graduated from college together and are anxious to get started on experimenting, as they are both chemistry majors.  They decided to start with something simple, just to get on the right foot.  They test samples of saliva for different people to try to determine whether they are a boy or girl's sample by how much testosterone is inside.  They are in a lab testing these samples, but are extremely frustrated because they did not seem to collect clear samples.  Although they know that three samples are from men and three are from females, they cannot segregate between them while testing.  They begin yelling and screaming at each other for making mistakes.  However, soon they realize their mistake and are very sorry for yelling at each other because the mistake was made by both of them the samples had been mixed!  They laughed and attempted a similar experiment, finally achieving the results they wanted.
