I Just HAD to!

Kate: I can't believe Daddy wouldn't let me have dessert. . .ON PURPOSE!!!
Me: You know why you didn't get dessert. You were arguing with Daddy and got it taken away.
Kate: But, he took it. . .
Me: Well, why did you argue? You knew he said he would take your dessert if you argued again.
Kate: I just HAD to!
Me: Why did you have to?
Kate: HE argued with ME and I had the right answer!!!