This woman was teaching a class and she told the class that the next day there would be a quiz on all of the birds that they had been studying. So this one boy Johnny went home and studied really hard for the exam.
The next day the teacher said, "I have some good news and bad news." "The good news is that there will be a quiz, but the bad news is that you will only be able to see the bird’s legs in order to identify them."
Johnny said "that’s bull".
The teacher said "Young man you have a bad attitude. What is your name?"
Johnny lifted up his pant leg and said "You tell me."