Why is Mr. Pearson called "Jack and the Beanstalk" in Raymond's Run?

Mr. Pearson is called “Jack and the Beanstalk” because he is very tall.  Squeaky says that “he sticks out in a crowd because he’s on stilts.”  We can assume that he isn’t really on stilts, and this is just a reference to the fact that he has very long legs.  Squeaky also says that when they used to make fun of him, she was the only one who could outrun him, a testament to her undeniable speed when pitted against someone with such long legs.  She also says that she’s too grown-up to enjoy poking fun at him anymore, and takes umbrage at him calling her by her nickname when she isn’t allowed to call him by his nickname.  So while the kids used to call Mr. Pearson “Jack and the Beanstalk”, or just “Beanstalk,” they only ever do it in their heads nowadays.