* In this book I’ll be referring to all adults, former kids, and chronologically older humans as grownups. I’ll be using the unhyphenated version of the word because, upon investigating, I discovered that you spell this as either grown-up or grownup. I decided to follow the lead of authors Stan and Jan Berenstain, since they used the unhyphenated version in their 1992 The Berenstain Bears and the Trouble with Grownups.