I get the feeling that the researchers might have thrown me out after the Nth time suggesting, for every item, the following uses: murder weapon, "adult" toy, j

I get the feeling that the researchers might have thrown me out after the Nth time suggesting, for every item, the following uses: murder weapon, "adult" toy, jury-rig repair part, primitive math, steganography, and fashion accessory. Anything is a _____, if you're brave enough. If you think about it, the hard part is coming up with a useful purpose that can only be fulfilled by one kind of object. What useful purpose can only be accomplished by use of a sock? Not even "keeping a foot warm and dry while inside a shoe or boot" works there.