When you're a child, you don't want to grow up. When you're an adult, you're glad you grew up!
When you're a child, getting messy from head to toe while eating is adorable. When you're an adult, getting messy from head to toe while eating is a sign of neurological dysfunction!
When you're a child, you view upcoming birthdays as a sign of an impending party. When you're an adult, you view upcoming birthdays as a sign of an impending funeral!
When you're a child, you eagerly anticipate opening Christmas presents. When you're an adult you dread opening after-Christmas credit card statements!
When you're a child, you run away from home because your parents are mean to you. When you're an adult, you run away from home because your kids are mean to you!
When you're a child, you want to play with the neighbor's kids. When you're an adult, you want to "kill" the neighbor's kids!
When you're a child, the school year takes forever to end. When you're an adult, the school year ends way too quickly!