Jon Ronson continues his look at human behaviour by finding the moments where we respond in an uncontrollable way.

Comedian Robert Popper couldn't stop his drunken friend from putting their lives at risk while at a wedding in Israel. The story involved a pair of underpants, but no hilarious consequences.

Another interviewee, who survived the 7/7 terrorist attacks, found herself - during the period of her recovery - uncontrollably joining in with message boards accusing her of being a government plant on one of the bombed trains. Show less