...and make sure that your answer is clear enough to cover all of the possible situations and degrees of "off."
** two wheels in the grass
** two wheels in the place where the grass used to be until all of the people driving over it turned it into hard packed dirt
** two wheels in loose dirt where the grass used to be
** two wheels in the loose dirt on the track, pulled out there by people doing any of the above
** two wheels off when I'm committed to an inside pass and the passee moves to the inside because he hasn't seen me coming, forcing me into either of the above
** two wheels off when I'm committed and the passee decides he's just going to scoot over on me in a defensive move
** two wheels in the air over the grass, when I leap over the curb
** any of the above lapping someone in my class
** any of the above passing someone who's not in my class
** any of the above lapping someone not in my class
** an off, where I understeer to the outside and come back on the track losing a position
** the same off, only not losing a position - less of a loss is "an advantage," right?
** the same off where I shortcut to the next corner, moving a second ahead of the person I'm racing with (there's a freebie for you)
K
EDIT - OOH! How about driving off track to avoid someone spinning ON the track? I've gained an advantage by not caving in the front of my car.
EDIT EDIT - and to be clear, let's not conflate "off course" with "dangerous." They are covered by entirely different rules and it is not sufficient evidence that any given action is one, just because it is the other. Or not, as the case may be. I've seen plenty of dangerous moves that never went anywhere near off the track, and vice-versa.