Scrotum Head Disorder
Scrotum Head Disorder, formerly known as being a dick head, is a serious mental condition that causes extreme leftist behaviour that includes emotional posts on facebook(mania or hypomania) and lows (depression). When you become infected, you may feel angry and hopeless and lose pleasure in everyday activities such as shopping and being in a monogamous relationship. Mood shifts may occur weekly or as often as several times a day.

Although Scrotum head disorder is a disruptive, long-term condition, you can keep your moods in check by investing in ETF's (also known as Exchange Traded Funds) or any annuity investment sold by the big five banks.
Jack--"Holy moly! Did you hear about those European school kids who got scrotum head disorder at the cafeteria."
Jill--"Yeah. The school teacher got bitten by a zombie and infected them all!!"