Cheerios are good, but I believe we all know that Fruit Loops are just heaven sent. (Pun intended.)
We as Christians are called to be dramatically different. Let's say that you're blindfolded and given a bowl of cereal. You would notice a Fruit Loop by the different taste even if you couldn't see its sugar-coated colorey goodness. (I love Fruit Loops, can you tell?)
It's the same way with Christians. Matthew 5:14 says, "You are the light of the world. A city set on a hill cannot be hidden." No matter what you do, you will always have that difference about you. What if a Fruit Loop went around calling itself a Cheerio, jumped inside the Cheerios box, and claimed to be heart healthy? It can try to be what it isn't, but at the end of the day it's still a Fruit Loop.