How to take unsuccessful pictures of fireworks

It is really quite easy:

• Place the camera on a tripod
• Adjust the settings manually (exposure-time, aperture, focus etc)
• Lock-up the mirror
• Set up the cable release
• Start the exposure
• See another beautiful rocket
• Forget that you have started the exposure
• Move the tripod

That is all there is to it. Now you have a completely wasted picture. Or a piece of abstract art.