My apparently missed point isn't that I'm perfect, far from it...my point was that most people have been all over the spectrum of 'weight' as far as fat/normal/thin go at one point or another, and that everybody gets picked on occassionally, it doesn't make it right or wrong - it just means its not the most important thing to get focused on.
The proper answer apparently was:
Get off your bike and walk around them so as not to upset the delicate sensativity of the situation, especially if your concerned they might walk into you as you ride by. Beyond that, get a bell, as clearly that is the normal answer.
I think my ultimately solution is just not to have a sense of humor on these boards, I'll be just another robot who throws out precise, logical, mathematically accurate answers designed to be as politically correct as possible.