well I looked at a list of "burning ?s" and thought this would be cool to try. the things needed are:
an office chair with wheels
fire extinguisher
a big room or flat hallway
and if your smart a helmet

Step 1: What to Do

I seen this done on an episode of "Malcolm In The Middle" entitled "Rollerskates" its the 13th episode in season 1 (if you find a video of this please post url of episode) but what you do is set the wheel chair or office chair in the large room or hall way. the chair has to be pointing backwards from the direction you want to go.

Step 2: The "rocket Fuel"

now put on your helmet on and put the fire extinguisher in between your leg be careful not to freeze "the jewels" make sure your path way is clear pull the pin and squeeze the trigger on the extinguisher and prepared for a ride!! for a more visual explanation check these youtube videos
http://youtube.com/watch?v=x6PFp5RJ87I

this one is the opposite way but works just as fine
http://youtube.com/watch?v=H7wn8mDVICw&feature=related

here is an alternative to a chair
http://www.youtube.com/watch?v=IlMtJW7reKg&NR=1

I know this isn't the best tutorial but what more could I do considering I personal didn't do it?
please vote for this!!