The obviously fake room
We actually feel bad for the person who bought this, and clearly, only after did we realize it was a complete scam. In this case, the people who should definitely be told are the ones who sold this to them. If this doesn't warrant a full refund, nothing will.
We'd also be curious to see this thing in action. Does it just move around on the floor while pretending to vacuum and sweep using the non-existent holes and brushes?