People, people. COME ON.
What happened last night:
[copied from email]
Vertigo air had to get going by midnight or they'd have fees and such leveed on them. Is that how you even spell that word?
Anyway, they started a little late, and by the time they'd made it to Instant Karma they'd already skipped over Yahweh, which we were supposed to get. So they took Patti on stage for IK, and again it was totally going off... but there was that time thing. So the audience was just... unbelieveably loud, and Bono led Patti off-stage (think 40 where they just walk away.) And the others all followed. I think this is where Patti's 'strange behaviour' comes in, because she was just confused- it wasn't a planned exit at all, and she didn't understand what he was doing. I'd guess off-stage they were like, 'do we come on for 40 or don't we, do we/don't we' and they decided not to, all came back on (presumably after briefing PS on what just happened) and Bono/PS start up the chorus again, full band kicks in, just going at it, and that was it. Lights stayed on for a long time before they raised house lights, and they had most of the stage deconstructed by the time Cheryl and I got out off the main floor.
Addendum:
She was fine during her set. She crawled on the ground a bit, and if she spit, so what? It wasn't offensive projectile spitting. I've seen her perform a few times before she opened for U2... it's just part of how she acts and had nothing to do with the night itself.