irresistible

I sometimes goof around with the boys by locking the front door when they arrive home from school. They ring the bell and I say, "Sorry, not interested."

Someone will ring it again and yell, "I'm your son." To which I respond, "Buns? Sorry, I don't need any buns."

You get the picture.

Well, when the little one stepped into the window to show me how serious he was about being let into the house, I couldn't help but laugh:

It musta been one rough bus ride.