Keith said:

Someone goes to FutureShop and is told that a certain camera is an open box.

Someone goes to the same store and buys a camera and finds out that the 
camera was called an open box but in fact a person bought the camera, 
photographed a wedding and returned it as defective. Can a store say it was 
an open box without telling the customer it had been used and returned as 
defective.

What are the rules, or law governing these two situations in the US and/or 
Canada.

Please, if you are making a guess say so and if it is a fact of law please 
say it so.

Keith