To me, a bust is when I have a rotten time, wish I never went, and wasted my time! LOL I've drove over 25 hours, 2,000 miles on one chase before, and saw ONE SC...that was a bust. If I am chasing something that goes tornado-warned, my adrenaline is through the roof, then whether I see a tube or not isn't important..that is NOT a bust. Last weekend I was in Dumas, Arkansas 7 minutes after the tornado ripped through there. I didn't see it. What i DID see will last forever in my mind...this was NOT a bust..this was the most memorable chase ever. I'm wondering what do you all consider a bust?