Wasted Spark ?

[Andy]

At last, a sensible theory on how lightning is formed. All the wasted sparks go out with the exhaust and accumulate in the atmosphere. When they build up to a sufficient level you get a lightning bolt.

Ahh thanks Cam, that all makes sense now.
So the lightning nuts are also known as storm-chasers?

 

[chrisk]

So the lightning nuts are also known as storm-chasers?

And didn't they drive a pretty cool station wagon?