I'm Bad! by Kate & Jim McMullan (Joanna Cotler Books, 2008)
Tyrannosaurus Rex is bad! T. Rex taunts the reader - Are you bad? I'm really bad - and tries to display just how mean and bad he really is in this great new story from the picture book duo, Kate and Jim McMullan. Children may remember the McMullans from their previous successful books, I'm Dirty, I'm Mighty, and I Stink! Fans of dinosaurs will want to read this one again and again.