RE: the most noob question of all....
Once you run a vehicle out of fuel a few times you will get a feel that it is coming and you can back off to medium/low throttle till its dry. If you think about it, what do you do before you put in after run oil - run all the fuel out of the engine, why not do it on the track, or headed back to where you are at so you don't have to walk so far to get it.
Ed M.