Gordon Lightfoot, Red Rocks, early 70's.The band arrived on stage 30 minutes late, without Gordon. They tuned up for 20 minutes, played a couple of licks, and then sat there for another 15 minutes, waiting for G.L to show. Then they left.
Came back another 20 minutes later, kind of helping G.L. to his chair on stage. He couldn't hold his guitar, so it sat in its stand. They all assumed their places, then G.L. fell off his stool.
The band tried various methods to prop him up on a shorter chair, then he fell again and they carted him backstage.We were sitting in the front third of the Amphitheater, and the crowd was so angry after the second exit without even a peep from G.L. that they started throwing bottles at the stage.
All in all, we waited for 1 1/2 hours, heard nothing, and had to run to avoid the missiles.
Truth be known, I have attended several shows in Colorado, where the drugged or boozed up performers seemed to underestimate just how much effect Mile High thin air has on their ability to stand.