I had an incredible high school AP math teacher my junior and senior year, Mr. Pickett at Fort Lauderdale High School (FLHS). My class (1984) by the way was great. They still get together in Ft. Lauderdale during the holidays. In fact all the classes before and after me were great. They were the stuff of what we picture high school to be at its best. At least I thought so.
And now to the obscure you could only expect of me ;-) I had Mr. Pickett for Calculus my senior year. He was, by the way, even better than my college calculus teacher. He was so good for me that I can still remember things he said, and I don't remember anything from real life. ;-)
I remember him talking about the "epsilon-delta" confusion in the first weeks of calculus. He told us not to worry about it. He said the only person he knew who claimed to understand it was a fellow student of his at Florida State, who occasionally would fall down the stairs because he wasn't paying attention to where he was going. He said they would yell, "Are you okay, x?" And he would yell back, "Yeah."
I took that as a challenge. I would eventually look at this epsilon-delta confusion. I would understand it. And I did when I was in college. It isn't actually that big of a deal. It's mathematicians dotting their i's and crossing t's in a way that seems complicated--much ado about nothing for the rest of us.
The point is that Mr. Pickett understood. I know he did. He just knew it was completely unnecessary for us to know. It would have blown almost everyone's circuit breakers over something completely unimportant unless you're going to be a math professor.
So here's to Mr. Pickett, wherever you are. He moved back to South Carolina the year or so after I graduated, much to the loss of FLHS.
P.S. Yes, I remain a nerd on my own time. ;-)