Scott just needs to put down the "painkillers" and quit with the booze.
That is interesting that all those guys use teleprompters. I had no idea.
The drugs and booze are the real problem here. I agree with others in this thread that one or two flubbed lyrics out of an entire show don't bother me. It's the show where he starts wrecking full songs, and that is all because of the drugs.
Also, I hear what people are saying about the broken heel/painkiller theories, and that may be the case. But he's not obligated to get loaded to be able to do a show where he dances around all night. That's bullshit. I would rather Scott sit or stand in one place during the whole show and put on a good, solid vocal performance the whole night. Granted, the visual part is a big part of a rock show, but come on -- this is a rock band -- the music, and thus a good quality musical performance, is the most important thing. Everything else is incidental.
For example, you'll never hear, "The video screen broke, and the whole show went to shit after that! I mean, the band sounded great, but the show just sucked!"
It's all about the music, and it's all about the performance. A good musical performance = happy fans. Always.