Yes, I would totally wear that clown suit to high school. My classmates would have loved it! (My, shall we say, eccentricities... won me a strange sort of popularity.)

Also, having had the experience of repeatedly being able to come up with correct answers that almost all the other students could not has made me perhaps a little more confident in myself than I should be.

My freshman chemistry class in college had multiple choice exams; when taking the final, I noticed that, on one problem, my solution didn't match any of the answers, but after going over it several times, I couldn't find any mistake in my work. I eventually decided that the error was not mine, and spoke up. As it turns out, the question did contain a mistake that affected the answer, and I was the only one confident enough to question the question!