Scott Adams, creator of Dilbert, has a blog. It's absolutely hilarious.

You’ve probably noticed that opinion pollsters go out of their way to include as many morons as possible in surveys. That’s called a representative sample. And what it means is that the opinion of Einstein, for example, counts as much as the opinion of the guy who thinks The Family Circus comic is sending him secret messages via Little Billy.

You might argue that my example is bad because Einstein is dead. But according to physicist Erwin Schrodinger, Einstein is neither dead nor alive until we dig him up and open the casket. If he’s alive, he might want his brain back, which I understand is in a Ziploc bag in some guy’s freezer. And this is a perfect example of why examples always distract from the main point.