Mommy Said No

Overheard from the backseat: Jack: "Ava...when I get my cast, I'm getting a red one with a blue stripe." Ava says, "Ooh! Just like me..only mine is pink and purple." Jack asks, "Ava, let me try that on." Ava shouts to the front of the car (which is a rental car because mine has been in for service all week), "Mom! Can I take off my cast?" Me: "No" and then Ava WHISPERS, "Mommy said I can't." Jack conspiratorially responds, "Maybe you should try." Ava then shouts, "Mom! Can I try?" Me: "No". Ava WHISPERS to Jack, "Mommy said no". Jack states, "Well, I will just have to get one too." Seriously?! How many more injuries do we need in this house?!