A courier thought my CNC shop could fix his blender blades

Had a courier drop off some steel stock yesterday, and he noticed the CNC machines. He asked if I could sharpen his blender blades since they were 'computer controlled.' I tried to tell him that's not how it works, but he was convinced I could just pop them in. Ended up showing him a quick demo on a scrap piece, and he left amazed but still confused.