Worst job, by far, was working at Casual Male Big and Tall. For starters, I'm what the other employees liked to call, "a norm" aka I wasn't carrying around a Honda Civic on my stomach and one could see the post that holds my head onto my shoulders. Not only was I looked down by this fact and somewhat abused because of this (I did so much more work because the larger folk couldn't quite muster the energy), I had absolutely nothing I could spend my discount on. One time, I actually bought the smallest shirt the store has ever seen just so I could use my discount. I didn't even try it on. That was a silly thing not to do because the fucking thing looked like a dress on me.
Two things that really perturbed me. One was folding. If you have ever worked clothing retail, you know how annoying it is to fold. Try folding a shirt that is the equivalent to three normal shirts. I felt like I was folding sheets all day. I was doing five times as much work as any other retail worker yet getting payed less (I wasn't getting payed all that well). Second gripe was the smell. Larger (obese) people smell. Washing is hard for them; they can't get to many a places. Also, sweat builds up in the folds and make for a bunch of stinky armpits all over their bodies.
Customers wouldn't like to be helped by me and often set out for someone with a similar build as them. This was frustrating because not only was I the best one to help them (I worked with idiots), a lot of my pay was based off of commission.