I first saw Jerry Jeff Walker live in Ottawa at the fabulous "Le Hibou" coffeehouse. I was always in awe of the place whenever I walked in; it was a local icon of folk talent. That night I was prepared to be blown away, my hero was here, live! The first set was great...but in between sets, he went across the street to a no-nonsense working man's tavern, and proceeded to get royally hammered (Le Hibou served only coffee and no alcoholic bevs).
Ditto after the second set.
In the third set he began to insult the audience... and slur his words, and mess up his chords. Still I liked his music, but I never felt like seeing him live again.