I never get free stuff! I do however get a lot of:
-"what is wrong with you, do you need an ambulance?" (they think of a stroke, or f.e. when I suddenly fall on the ground)
-people doing stuff for me without me asking, but just because of a wheelchair.
-"how brave of you!" when Im in a wheelchair (?)
And, most of the time people think I'm lazy and using pot. I often have a "tired" expression, stare into nowhere and a bit of overall weakness. And because Im young, no one ever suspects I can be sick.

When I have to sit on a chair in the supermarket, the old people laugh: you must be tired! (sarcastic) or, don't be so lazy. but free gifts? Ooh, I wish!