Back in the 00's when All-Bar-One used to do music.
No-one had heard from the vocalist for a few days. Half an hour before the gig the guitarist went to find him. When they arrived we were due on so they came straight on stage. Guitarist had a pale worried look, which gets worse as the vocalist starts to emit woeful high pitched shrieks. I move closer to vocalist aiming to indicate wtf? but am repulsed (in every sense of the word) by an odour with its own post code.
The short first set, continued thus, woeful wailing & the rest of the band trying to keep their distance from the vocalist, until vocalists Mother walked on stage, dragged him off and took him straight to a mental health facility.
Turns out in the days we hadn't heard from him, he'd scored a massive bag of weed, and had been doing nothing but smoking it since. Whether this directly caused the psychotic episode he was sectioned for we'll never know. No idea who called his Mum.