Pity, yes. Ridicule, no. Never.

Look at me: I am morbidly obese. Most people want to ridicule and are disgusted by my physical appearance. What they don't know and don't understand is that I have always been a health freak, and a high level athlete until I got poisoned by mercury. Now I'm fat because my body is using it to store away this horrible poison. It's a survial mechanism of a poisoned body, not a testament of laziness and stupidity. But most people choose to believe the latter. Be careful you don't fall in the same trap, it would be disadvantageous to do so.