Former banking interns say it's common to work up to 100 hours a week, mostly to please bosses and get ahead in the cutthroat business.
After the death of a Bank of America Merrill Lynch intern who reportedly worked until 6 a.m. for three days in a row, CNBC asks viewers if they worked overly long hours as interns.
(Read more: 'Grueling' hours at banks in focus after intern death)