TickTockMan
"Repent, Harlequin!"
WEDNESDAY, May 16 (HealthDay News) -- Some people actually may have "gaydar," a widely used slang term for the ability to assess quickly another person's sexual orientation, a new study suggests.
http://news.yahoo.com/people-really-might-gaydar-211006742.html
Tabak said the findings challenge the theory that if people kept their sexual orientation to themselves then discrimination against gays, lesbians and bisexuals would not exist. This type of argument is made by people who oppose anti-discrimination policies for these groups, the release noted.
I thought this was interesting.

