Earlier quoted context omitted.
I would imagine you got it right with the "get out of the gym if you are not already fit". It's amazing how badly people act towards people starting out on their fitness.
Literally never seen this happen. 98% guarantee the stigma is in the obese person’s own head more than anything. It’s just easier to transfer the responsibility to ”an unfriendly environment” than taking responsibility & control of your own feelings and actions
"..you will become way less concerned with what other people think of you when you realize how seldom they do." - David Foster Wallace