OK, to start with let me say that this was my first job out of uni, so I was quite naive about what to expect from a boss. There is no way I would tolerate this sort of behaviour now!
As mentioned above, I got my first real job working for a company that organised international Science conferences. My role was to help organise the conferences, sort out exhibitors, help monitor budgets, advertising, marketing, membership etc. In fact, pretty much everything.