Lindsay: Have you made your decision about the movie yet?

Dad: Your mom and I discussed your request and decided that if you will each eat a brownie, we'll let you see the movie.

The girls look at each other, puzzled. 

Mom: However, just like the movie you want to see, the brownies have pros and cons.  The pros are that they are made of the finest chocolate and other good ingredients.  I've even added walnuts and made Grandma's recipe for chocolate frosting!

Dad: The brownies were made lovingly by the hand of your mother.  Isn't she sweet?

Mom: They have only one con.  I've included a tiny bit of a special ingredient. 

Lindsay: (Skeptical) What's the special ingredient?

Dad: Dog poop.

Lindsay: (Shocked) What!

Anna: (Disbelief) No way!

Mom: Don't worry, I mixed the batter well. You won't even be able to taste the dog poop.  And I baked the brownies at 350 degrees so any bacteria or germs have probably been destroyed.

Dad: The way we figure it, if you're able to see a movie with just a little bit of smut and not be affected by it, you'll be able to eat brownies with just a little dog poop and not be affected.

Lindsay: I don't believe you'd actually put poop in brownies to make a point!

Dad: Then eat one.

Lindsay: Forget it! I don't want any.

Mom: C'mom, Linz, just a bite.

Lindsay: (Stares at the plate) No way.

Dad: Anna Banana?  How about you?

Anna: Ick!

Mom: But you love my brownies!

Lindsay: Not anymore.

Mom: What if I told you that I entered this plate of brownies in a contest.  If the judges like them, I could win an award. 

Lindsay: (Nods slowly) Okay, now I get it.  Your point is that the brownies might look and taste great, but there's something in them that's really gross!