Talking on the phone to the Latinist who corrected my typo (as if I don't know that it is ad nauseam and not ad nausea), he made an error...and corrected it with the following exchange:

Latinist: "Ah, it should be 'me' not 'mihi'."

Me: "Hah hah! I should blog that. The smug Latinist makes an error in conversational Latin!"

Latinist: "It's from hanging out with that St. Eisenhower's crowd. You know...insist on Latin purity, while getting it wrong"