<p>...?</p>
<p>I have... As far as 8th grade. Yes, in 8th grade, many of my classmates STILL believed in Santa. I suppose that if public school has done me any good, it was by exposing me to the extent of mankind's stupidity.</p>
<p>So I had debates and thought experiments by asking questions such as "do you think Santa can really travel faster than the speed of light if he were to deliver presents to everyone simultaneously?"</p>
<p>...it's actually not THAT surprising that people in 8th grade still believe in Santa, given that the same people are also likely to believe in statements like "The Second Coming is going to come within 100 years".</p>
<p>The responses were certainly similar to the responses that some other subgroups of people make (which I shall not mention).</p>
<p>It would be funnier if such debates happened in earlier grades though, like 4th/5th grade.</p>
<p>I carry around a physics proof that mathematically proves that the existence of Santa Claus is impossible. </p>
<p>Whenever I hear someone mention Santa Claus, I walk right by him\her and slip the paper under his\her chair. Then, I call to him\her "Hey, you dropped something." The victim proceeds to look underneath the chair and picks up the paper, and slowly, s\he begins to read it. Within a few minutes, the victim begins to scream uncontrollably and begins having erratic paroxysms. The victim is promptly escorted out of the classroom to receive post-traumatic psychological treatment. </p>
<p>Hence, I never "lose" the "debate". :)</p>
<p>Yeah, I have mathematically proven last year that Santa Claus doesn't exist.</p>
<p>I calculated how many children exist in this planet Earth and how many presents santa has to provide and how fast he has to travel and so and so....telling them to imagine a hypothetical place with only one so and so.....</p>
<p>This was during calculus, and basically, a girl stood up and said, "Because it's a MIRACLE," and my long speech ended there.</p>