Why? Just Why?

Mom: (to my dad) Whenever you get the chance, I need you to buy these books for me.
Dad: What books?
Mom: Fifty Shades of Grey. Everyone is talking about how good they are.
Me: No. No, they are going to be a big waste of money. Just trust me.
Mom: Oh Danielle, you're so negative about everything. I know what they are. Everyone says they're good.
Me: Everyone is wrong.