I am sure that has happened to someone before though.
People associate laziness with fatness and I think that's why it makes people uncomfortable or why it leads to disparate treatment. On the flip side, thinness is associated with being weak and pressured to comform, and this manifests itself into equal nasty treatment that sort of goes unmentioned a lot. I would argue fatness is on the receiving end of far more subtle bias in addition to obvious bias, where thinness, that I have seen only gets the brunt of overt bias.
Oh I agree 100%.
I wasn't saying it wouldn't happen. My point was that fatphobia exists because unfortunately that type of exclusion does happen.