I get this sometimes. At my company, we hire a fair amount of interns working on their degree, and since I very rarely drive up to corporate, people always assume my car belongs to one of them. I had to bring some stuff down to the satellite office I work out of, and since most people don't know I'm actually a senior engineer, they make really funny comments. Stuff like: "that's pretty much the typical car for a college student". I wind up laughing and saying I'm allergic to car payments. It happened once on accident, and I got hooked. It's like super-productive heroin.
All that being said, I don't hide what I'm doing. This isn't necessarily a new thing...I mean, shit, my username is my actual name. However (and this may be my narcissistic tendencies coming out), I refuse to believe that I can't shape the future in some way or another. I lead by example. Sometimes it works, and other times, maybe I just planted a seed, or accomplished nothing. No sweat off my back, but I think that my way of life, for the most part, is awesome, respectful, and productive. I used to say in a joking manner that the world would be a better place if everyone was as logical as I am. I preach my lifestyle from the roof tops, and I do it to engage others in a conversation about badassity. Someone (edited: Le Barbu) who posted earlier has the quote from MMM in their signature:
The real reason this blog exists, is simply to save the entire human race from destroying itself through overconsumption of its own habitat.
If people are interested, I'm more than willing to talk, but I like to think that my verbosity gets people thinking. And on occasion, thinking turns into action, and action changes things...like the world.
As far as lunches go, I've taken some shit on that, even from our VP, but I always laugh and tell them that there isn't anything in this town that you can buy that tastes better than what I make, and it's healthy!!!