It isn't easy being Duncan Rumplemeyer. Duncan doesn't mean to get in trouble, but sometimes he can't help it. And there's one thing in particular that keeps him in the doghouse: He can't quite get the hang of sharing.On his seventh birthday Duncan finds himself in the biggest trouble of all. Will this be Duncan's last birthday party? Will his friends speak to him again? Will his parents ever let him out of his room?Duncan Rumplemeyer's Bad Birthday...