Take a week 2 picture of your Fast Food and post it in your blog if you can. Write a post describing any changes in appearance or smell. As that pondering question remains on McDonalds hamburger after two weeks it still remains looking the same as the first time you buy it. As far as smell goes there is not really one. You would expect food to go spoil and just smell nasty but there is no smell. This kind of makes you think twice about eating a hamburger.