It was a practical session in the psychology class. The professor showed the class a large cage with a male rat in it. The rat was in the middle of the cage.
Then, the professor put a piece of cake on one side of the cage and he placed a female rat on the other side. The male rat ran towards the cake and ate it.
Then, the professor put in some cheese. The male rat ran towards the cheese and ate it. This experiment went on with the professor alternating the cake and the cheese in the cage. Every time, the male rat ran towards the food item and never towards the female rat.
The professor said: “This experiment shows that food is the most important attraction for males.”
Then one of the students from the back rows said, “Sir, why don’t you change the female rat?”
The professor responded,“Why do you think that might change the results, young man?”
The student promptly replied, “Because the one you’re using might be his wife!”
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