Has anyone else here performed a public practical joke a la Andy Kaufman? I'm talking not one victim, but rather a whole group of people. This is a part-time hobby of mine. I say part-time because even an attempt at mastering this art requires full-time efforts. My brother once told my professor " you never know when he is lying; he is smart enough to know and smart enough to fool everyone that really knows." Please share your experiences whether you performed or were victimized.