Does your daughter hope to dress up as Harley Quinn this Halloween? If so, she may be upsetting the mentally ill — or at least people who treat them.

This year, Harley Quinn costumes — Quinn is the Joker’s girlfriend in DC Comics’ Batman comics and a character in the “Suicide Squad” movie — are the No. 1 trending Halloween costume on Google (followed by the Joker and Superhero), and experts say you can expect lots of kids to dress up as the “psychotic” (that’s how DC comics describes her) character. Quinn, though fictional, has been described by some experts as having a mental illness. Psychologist Wind Goodfriend, writing for Psychology Today, notes that she appears to have histrionic personality disorder (symptoms include being overly dramatic and shallow, wearing provocative clothing and overestimating intimacy): “It’s almost as if Harley’s character were written to exemplify this list of traits.”

