Teh argued that the film is weakest when the attention is focused on hackneyed minor characters with the diamond cutter characters being the lamest of all.
It is strongest for durable goods and luxury goods and weakest for low involvement product categories such as shampoo, candy, light bulbs, toilet paper and athletic shoes.
Make a small car out of a goldfish bowl, and then fit the weakest air-conditioning unit you can find, and see whether you can actually desiccate the occupants.
