Sibling Spat (True Story)

Sister: "You used all my shampoo!"

Brother: "I didn't use ALL of it."

Sister: "Yes, you did! I have half a bottle of conditioner left, and NO shampoo left."

Brother: "That means I only used half! Obviously YOU used the other half."

Sister: "You used all my shampoo! Now I don't have any!"

Brother: "Sure you do."

Sister: "No, I don't!"

Brother: "Then what did I use this morning?"

Sister: "You jerk!"

Brother: "It was hard work, too. I had to shake the bottle for, like, five minutes before I got enough out to wash my hair."

Sister: "UGH!"