I'm not sure how crazy this is, but it shows evidence of being "crazy-tough". It was the first Elevation show In Miami and Bono just fell off the tip of the heart! He just walked right off into space. I couldn't believe my eyes. That must have hurt like holy hell. He got back to the catwalk/heart, and seemed a bit shaky (naturally).
But to his credit, Bono somehow shook the fall off and went on to turn in another great performance.
That's one of the reasons I love Bono so much. He's a tough bastard.