1. When people pronounce the "s" in the middle of my name as if it's a z. (My real name, in case you don't know it, almost rhymes with "messily.")
2. My last name is hyphenated: Trill-Wing. The "Wing" comes from the husband, the "Trill" is my birth name. Yet again and again, people (especially students) think it's OK to call me "Mrs. Wing." WTF?!
I usually sign my e-mails with my initials or my first name, but when students address me as Mrs. Wing, I sign as "Dr. Trill-Wing." Sometimes they still don't get it. Over summer session I finally got fed up and sent out an e-mail about academic etiquette and about addressing people by professional titles instead of marital ones.
Additionally, when telemarketers call and ask for my husband by name, I tell them he's not available. At which point they always ask, "Oh, is this Mrs. Wing?" My response is always, "There's no one here by that name."