I have been sacked from several bands in my lifetime but it never really bothered me.
the first sacking (circa 1988) when I was 24, was from a band who's lead singer/guitarist thought he was Paul Weller.
We were playing the Mean Fiddler in Harlesden when I turned up in a Fleetwood Mac 'Tango In The Night' T shirt.
(That album had only just recently came out IIRC)
He said that was not the image they were trying to convey. π
The second sacking was from a function band who wanted to play Sunday lunchtime gigs as well as the regular gigs.
I couldn't do it as I worked shifts, and had to jiggle things around so as I could do the main gigs, but could not guarantee I could be free on Sundays too.
It was quite amicable and I used to get the occasional phone call asking if I could dep when they where stuck.