Hello.

"We got you and your brother a car to share"

"A car?!?! We don't need another car. If we're sharing it, why weren't we part of the decision making for such a huge responsibility? Didn't you always told me to earn my own car"

"We need not discuss with you because its our decision to make, we felt it was time you two had your own transport"

Next year I'm buying them a Great Dane to show my appreciation.