Throwing a killer party? Burning some couches? This will get you from spark to ash with only minimal burns, and most of your hair intact. It may seem like just a bigger camp fire, but it comes with a whole set of dangers unique to the scale. If there is one thing the boy scouts got right, it's to be prepared. Especially when you are about to light something on fire that is at least as tall as you are. If you don't believe me, check out http://www.cnn.com/US/9911/19/students.crushed.02/
And that was before the fire was even lit!
I am an Eagle Scout, and have worked at a BSA summer camp. For reasons that shall go undisclosed, we often built bonfires which were designed to collapse on purpose (but always without hurting anyone.) Like a logger felling a tree, I learned a lot about the structure of a fire by trying to get it to collapse in a particular way at a particular time. This instructable makes up a good portion of what I learned about getting a fire to burn properly. I may save the other knowledge for another instructable.