If you knew him, you might be inclined to think it is true. What school do you go to?
I think I would still be inclined to believe he scored amongst the highest, but not a 180. I don't doubt that your professor is smart, I just don't think he scored a 180... all be it, twice as was mentioned here. I mean really, think about it folks. If he got a 180 and they made him repeat it, that means it is near impossible because they think he must have cheated. To repeat that score is too much of an aberration. I had someone pm a site that tells you the percent likelihood of a score.... to get a 180 it is 0.02%. If you know anything about statistics, you would know that the ability to repeat that score is near impossible. You all have an urban legend, nothing more.
I will not answer your second question. I have said allot things here about my grade(s) and I don't want the chance that anyone from my school may put two and two together. Sorry, but I don't see why you would need to know. I don't attend your school, and I will leave it at that.