Ceramic Eggs

We sell ceramic eggs that look exactly like real eggs here at the store. A customer said she would put one in the egg carton with real eggs to mess with her dad. I told her that I did exactly the opposite; I put a real egg in with the fake eggs that my friend's mom had in a basket in her house. Three months later I went back there and checked on the egg. It looked normal until I dropped it in the sink. That was one of the worse smells I have ever smelled. True story.