From hotheads to curmudgeons, is anger always bad for business? Can anger management techniques help? Or should we put our wrath to profitable use?

Laurence Knight speaks to an entrepreneur who hit the headlines following an air rage incident about his chronic fits of rage. Anger management expert Dr Gina Simmons explains why he may want to consider doing press-ups.

We also hear from Mustafa Nayyem, who helped initiate the bitter Euromaidan protests that brought down Ukraine's last government. Plus evolutionary psychologist Aaron Sell explains the circumstances most likely to bring out our inner beast.

(Picture: Frustrated businessman screaming of disappointment and looking up; Credit: skynesher/Getty Images)