You have have enough to pay for a new tractor.  But one time - one mistake - and the time in the hospital will cost you a lot more than a new tractor.  If you are lucky - or maybe unlucky - you won't need to pay for a hospital visit. You'll be buying a casket - and a cemetary plot. 

You REALLY need to rethink this bad, and unsafe, habit.  If not for yourself, then for the "young ones" who are watching you.