John Chrin, a former managing director at J.P. Morgan Chase & Co. who left the firm in June 2009 to pursue an executive-in-residence position at Lehigh University, recalls seeing junior staff gain 30 or 40 pounds within a couple years on the job. When he worked at Merrill Lynch & Co., now a unit of Bank of America Corp., he recalls that one managing director ordered a chauffeur to turn on the air conditioning even though it was out of order, causing the car to burst into flames. The managing director then threatened to have the driver fired. Bank of America declined to comment…Alexandra Michel, an assistant management professor at USC’s Marshall School of Business, shadowed the bankers at the office—sitting next to them, following them to meetings, mirroring their hours and even pulling all-nighters—for more than 100 hours a week during the first year, about 80 hours a week during the second year, and then followed up with in-person interviews. One mild-mannered banking associate spoke about exploding in rage at a cab driver after unsuccessfully attempting to open a locked door from the outside: “I became so furious that I kept banging against the windows like crazy, swearing at the poor guy. And then I turned around and saw that a managing director was watching with his mouth open. I was so ashamed.” [WSJ]