Of course people treat you differently when you're fat!
I have this story that I love to tell. Several years ago, I was 9 months pregnant - past my due date - and driving around in a crappy little car. The car died right in the middle of an intersection in a very hilly area. I was at the bottom of the hill, and my only option was pushing it back uphill (the other directions were freeway on/offramps). This was my 3rd child, and my weight always fluctuated... and I took to wearing plus sized clothing instead of maternity clothes, as I could still wear them after the baby was born. I wasn't HUGE, but slightly over 200 lb. (the baby weighed over 10 lb. at birth). My "skinny" weight is 150.
Anyway... a cop drove by and was very rude to me telling me that I'd better move the car out of the intersection, or he was going to ticket me. I told him I was unable to push it up the hill, and he yelled at me. I told him that I was 9 months pregnant, and simply could not do it.
He then apologized, saying "Oh, sorry... I didn't know you were pregnant" and helped me push the car.
So he didn't want to help when he thought I was just fat. Also, nobody else stopped to help (despite blocking that intersection for about 15 min.), they all just drove around me. But when I'm thin, I have no problem with roadside assistance.
People really suck sometimes. *sigh*