Lets try to figure out what those buttons really stand for. Lets see...
Oil - lays out a mini slick in the rear when Montoya/raikkonnen come too close
N - Nachos - when he get hungry during one of his 30sec ahead drive
F - Fart - post nachos - release a dense cloud behind - is often mistaken for by unwitting TV commentators as tire smoke
BF - Barrichello F**ing - for when he wants to immediately put up a 5 sec lead on Rubens in 2 laps just to annoy him
C'mon guys help me out with the rest ....