A laugh-out-loud story about the challenges of unexplained and suppressed feelings depicts a chimpanzee whose mysterious bad mood escalates into a meltdown when his friends give well-intentioned advice instead of just letting him have a much-needed grumpy day that does not have to involve hurting the feelings of others. Illustrated by the co-director of The Gruffalo adaptation The hilarious #1 New York Times bestselling picture book about dealing with unexplained feelings...and the danger in suppressing them.Jim the chimpanzee is in a terrible mood for no good reason. His friends can't understand it--how can he be in a bad mood when it's SUCH a beautiful day? They encourage him not to hunch, to smile, and to do things that make THEM happy. But Jim can't take all the advice...and has a BIT of a meltdown. Could it be that he just needs a day to feel grumpy?Suzanne and Max Lang bring hilarity and levity to this very important lesson. This picture book is an excellent case study in the dangers of putting on a happy face and demonstrates to kids that they are allowed to feel their feelings (though they should be careful of hurting others in the process!).Need more Jim Panzee in your life? Don't miss the next book, Grumpy Monkey: Party Time!