ten second person

A crazy person, usually in a human services setting. So called because they'll switch up on you in ten seconds.

Mary: "Did you hear about Brian and Jessica? What is he thinking with dating a client?"
Denise: "Yeah, I know about it. Let's see how long he lasts in his job, dating a ten second person."

ten second person

Workplace slang for a loose cannon, often used to discreetly signal a red flag in a consort of interest. Usually a broken person displaying bipolar and/or manic tendencies. So called because they'll switch up on you in ten seconds or less.

Tom: "Bro... someone said you were dating your client Gina."
Greg: "What?! Yeah, imagine that. Me, dating a ten second person."