A student with a parrot on his shoulder leaves a lecture theater.He stops him and says, "I'm sorry to bother you, but I have to say, I was astonished by your parrot's remarkable reaction to the lecture on ancient history. He seemed frightened at the frightening parts, sad at the depressing parts, fascinated at the interesting parts, and amused at the funny parts. I could have sworn, I even heard it laugh. I have to say, I was amazed. Don't you find it surprising?"Another student follows him."Yes," he replies, "I was very surprised.