Person: hey can you do this thing?
Me, a known Disabled: uh, yeah, but it is very hard.
Person: okay, great!
Me: wait wait wait. I feel like you think I said, “Sure, no problem,” but what I meant was that while I can do the thing, it comes with the risk of harm to myself and/or my personal belongings. If there is any alternative to the thing, please let me do that instead.