Fair enough, it's their song and they can fuck it up if they want to, but this song has been a mainstay of their set list for over twenty years. They play it all the time. There's no excuse for screwing up a song you know THAT well. Terrible performance, but hey, even Elvis did it folks.
Munching pills in a nightclub turns you into a mindless zombie? Nah, that's a step too far, I mean as if that happens...