Our victim e-met this Manspam perp via an online site. After two weeks of emails and telephone calls they decided to meet in person. The first impression, though not intoxicating, was fair, and they proceeded with dinner.
After 30 minutes the perp, without explanation, began speaking a foreign language. Not wanting to appear impolite or ignorant our woman in the field interrupted him, telling him that although she spoke French and Spanish, she did not know or understand the language he was speaking.
Turns out the language was not from a country far, far, away, but rather a planet far, far, away, and a fictional one at that: Kronos, the Klingon homeworld.
Manspam Offense: Speaking Klingon.
Footnote for men seeking to avoid this Manspam offense: