I was in an original band when I just couldn't tolerate my singer's antics and attitude.
Driving 50+ miles to and from rehearsal and picking up my bass player and writing/arranging the material wasn't enough.
We were having one of those {censored} rehearsals and my singer goes on the warpath.
She asks me, "why are you here?".............In a split second, I turn off my amp and tell her in so many words, "it's over!"
On the way home, my bass player asks me why I took so long to pull the plug?
That was about 15 years ago.
Now, I play for the paying gig and try to avoid schmuck musicians....and if they're schmucks on a gig, it's my last gig with them.
I guess I didn't learn from when I was in another original band where we were going to do a showcase for Principle Mgmt (U 2's management co/at least then) and the other guitar player backs out and kills the opportunity. I haven't spoken to him since.