There is a faux pas recognition test used for diagnosing Autism Spectrum Disorders. No, really. And it's apparently pretty good. There is both a children's version and an adult version. They are interesting to read. Social situations are described, and the subject is asked if anyone said or did anything awkward. In some situations there is a faux pas, in others there is none. The diagnosis is not made from the True-False score, but from the questions based on the subject's response.
Developed by Simon Baron-Cohen (and others), autism expert at Trinity College in Oxford and author of popular books on the subject, Mindblindness and The Essential Difference: Mail and Female Brains and Autism, the test is slowly coming into use.
You wonder if you recognise the name? Yes, Simon is the cousin of comedian Sasha Baron-Cohen. The whole family seems to be rather accomplished. I think that the irony is amusing, and not quite accidental. Borat's psychologist cousin develops a diagnostic test based around faux pas. Very nice.