A father is telling his son about god's wisdom, and how everyone on earth has a purpose and plan.
Just then, LessWrong walks down the street. They're homeless, clearly a man in drag, missing a shoe, and drinking from a flask of brewed kratom.
The son asks "Daddy, what's that xerson's purpose?"
"Oh," says his father, with some hint of stern sadness "That persons purpose is to act as an example to others. They live like that to remind you to never be like them."

Pic related.