Let's hear it!
Mine is that our PR firm sent us a final draft of a press release FILLED with typos, grammatical errors, and misspellings (including misspelling the CEOs name TWICE). I fixed it, and sent it back with a strongly worded email asking them to please spend more time proofreading as this was very unprofessional. Our PR rep sent back an apology email with three typos. *head desk* Not inspiring a lot of faith here!