Oddly, I have noticed a different kind of reaction from people. I am a big guy anyway, tall, broad shouldered, big boned. Because I carry my fat a little differently from some obese people I am perceived as some sort of tough guy sometimes. I have been told I "intimidate people" and that "you are a big man, I wouldn't want to mess with you." What is funny is that I get tired so easily when I do physical labor. If someone did "mess" with me they would probably be very successful.
I am also a very sloppy dresser so I do, with that and my size, get the "he must be a lazy dumb ass" treatment from people sometimes.