Trying to explain photosensitivity as it applies to lupus to a coworker:

coworker: "well the uv lights can't possibly cause you problems with your lupus"
me: "yeah, well unfortunately it does"
coworker: "that's just not possible"
me: "why not?"
coworker: "because it just isn't"
me: "where are you getting your information to prove that it isn't?"
coworker: "well, well, it just doesn't make sense!"
me: "when did Lupus EVER make sense? or this conversation for that matter?"

and these people work with disabilities. Be afraid. Be very afraid.