I bought this ring under the impression that upon wearing it I would turn invisible. So I put it on, went into PC World, grabbed a TV and left. To my horror I was arrested because everybody could see me!
When I sent an email of complaint to the seller from the prison library, they told me that the small print said that the ring is non-functional and is only a replica. They also told me that the ring was not forged in Mount Doom, so it can be broken by any mortal weapon.
They wouldn't even refund me the money to bail me out.