Caps for Sale: A Tale of a Peddler, Some Monkeys and Their Monkey Business, Esphyr Slobodkina, Harper Collins.

The story is about a peddler who walks around town with all the caps on his head, trying to sell them. Since no one was buying them, he took a nap by a tree, only to discover that a bunch of mischievous monkeys had taken them and were imitating his angry actions. We act it out, the stamping, fist shaking, and "tsk tsk" sound, which makes it really fun to read to toddlers.