Imaculata
Hero
I have played in a campaign where an npc was gradually becoming a DMPC. A character that would always force themselves into every quest, have access to very powerful abilities and equipment, and force our party to do things we didn't want to do. Like if we neglected to investigate something in the room, the npc would investigate it before we left.
It quickly became very annoying. But we never considered murdering the npc. We're all adults, so we addressed our grievances outside the game. And the DM also took this as an adult, listened to our feedback, and made changes to accomodate our group's wishes...
...I'm just kidding. He threw a tantrum, blamed most of us for the problems, and refused to take any of our criticism to heart. Then he just stopped the campaign.
It quickly became very annoying. But we never considered murdering the npc. We're all adults, so we addressed our grievances outside the game. And the DM also took this as an adult, listened to our feedback, and made changes to accomodate our group's wishes...
...I'm just kidding. He threw a tantrum, blamed most of us for the problems, and refused to take any of our criticism to heart. Then he just stopped the campaign.