Yeah, saw that clip a few days ago and started wondering, "Wouldn't it be great if there was a way to convert stupidity into usable energy? You know, some kind of 'Stupid-A-Tron' machine."
I couldn't come up with any way to measure stupidity. I could imagine a 'Dolt' being the unit of measure, though. For example, "Man, he just contributed 3 MDs (MegaDolts) to the grid with that one!"
Burning toast would be 100 mD (milliDolt) and pouring milk into the coffee maker would be, what... 4 or 5 Dolts?
One thing I'm sure about is that the Earth has an eternal supply. Hell, we should be able to power a city the size of New York from just this BB.