Did'ja Know? (1950)

This short asks the question, "have you ever wondered" about certain situations. The first situation is being the expectant father in a maternity waiting room. Is there any way for the expectant father to be calm and collected upon hearing the news? The second situation is the greeting card business and if there is indeed a card for all occasions. The third situation is a man in the hospital recovering from a bad case of the nerves. What would happen if the radiator in his hospital room constantly knocked? And the fourth and final situation is a man applying for a job who is being interviewed by a sleepy yawning man. Will the yawning be contagious and if so will it affect the applicant getting the position?