I really love it when you have certain cloud shapes in the sky and the sun is being blocked by these clouds and the clouds have this outer glow to them.  The other day when I got home from work, at least I think it was work, this massive cloud looked like it was on fire with the amount of glow that was coming off of it.  But as soon as I walked around the car and got the camera, the cloud moved and I just missed the shot by seconds.  Here is the result of the shot though:

As you can see I missed the shot, but it would have been a good one just a little sooner.