whined passive-aggressively to me in email and bcc'd a prominent distribution alias
When I was young I accidentally sent our HR manager and email I typed about him that referred to his piss poor attitude and inability to find quality talent.

Replying all to an email chain to internally address the particular fuckery of one of the participants in the conversation, but forgetting to delete that person from your send to list

Actually it was only half as dramatic as it sounds, but my hands still quiver and make sure to triple check who I'm sending what to, especially if it might cause politics and feels.