Maybe you've been there. The kid you're hangin' with has been as good as he can possibly be for as long as he can possibly manage it. You see the look in his eye. You know what's coming and you frankly don't want to be around for it. At all, but especially in a public setting.
Let's say that setting is Costco and although your purchases are all boxed and ready to go, right along with the kid, Mom has had to wait for something further back in the store. You're near the exit, waiting and entertaining said kid as best you can.
All I'm sayin' is what did you think that honkin' bin of boxes was intended for?
Yea, that'd be the auntie, "Mimi" for the win...