There used to be a stunt driving team touring county fairs that did stunts like that with a fleet of Camaros or Dodge Challengers (or similiar). Don't know if they are still around... that was 40 years ago! They put on a pretty good show. Maybe the tractor guys are relatives! Actually, driving on 2 wheels is an old Hollywood stunt... but you need to have a locking differential (Positraction) to keep moving!
Speaking only for myself, it would probably be at about 8 beers when it begins to sound like a good idea! Urp...

That's only a guess... my limit is 2.