Jack has a grumpy grandpa, and he calls him that, even though he s not supposed to. But it s true. Grandpa is grumpy and a little scary, too. He has hair where other people do not have hair, and his teeth don t stay in his mouth. You d have to be crazy to live with Grandpa . . . or as brave as a lion tamer, like Jack s aunt and uncle. But the truth is, Grandpa didn t always have hair and teeth in weird places. In fact, Grandpa wasn t even always grumpy. A book that closes the generation gap one little bit, Grumpy Grandpa captures childhood and grandpa-hood with humor, hyperbole, and heart"