me: i mow lawns for a living
them: that's weird why are you driving a porsche?
me: i ask myself that question everyday
I say "I'm a marketing guy."
People don't usually ask more than that, marketing folks like it because they are used to self-important fancy-title answers.
I've learned the hard way to stay away from giving people the idea that I know how to fix computers or build web sites. One way ticket to hell there.
Professional fleshlight salesman.
If they want to get more in depth I can give a demonstration.
me: i mow lawns for a living
them: that's weird why are you driving a porsche?
me: i ask myself that question everyday