Breakdown

No, not the outstanding movie starring Kurt Russell and the late, great J.T. Walsh. The nervous kind. How does one characterize it? What are the criteria? Does one have to go on crazy crying jags? Does one need to be Baker-Acted, yet again? Does one have to hunt someone down and beat them so hard they'll piss blood for a year? Or is it enough to be constantly consumed by an incredibly unpleasant reliving of the moment someone you not only respected but loved revealed his or herself to be a treacherous, lying coward? Discuss.