You shouldn't take laxatives to lose weight.
Barbara is interviewing for an acting job.
Barbara wants to do well in the interview.
Barbara starts eating better and doesn't go out drinking a few nights before the interview to look healthy and be prepared.
Barbara takes a lot of laxatives to lose weight and look thinner on camera.
Barbara really impresses the casting agent at the interview and gets the part.
Barbara smells terrible and has to excuse herself to go to the bathroom several times during the interview, and doesn't get called back.