What’s an IT “truth” which other departments assume, that really annoys you?

That anything that uses electricity, or that has any moving parts, is IT’s responsibility to provision, troubleshoot, replace and maintain.

I know it’s because we have the only population with methodical and reliable troubleshooting skills but Karen, nope, I’m not gonna fix the coffee maker. And I’m not gonna unjam your stapler and definitely will not help you do your own team’s job, either.