[NSFW] Little Johnny asked his grandfather if he could have a cookie from the cookie jar

Grandfather: “Can your dick touch your ass?”

Johnny: “No.”

Grandfather: “Then no cookies for you.”

A number of years later, when Johnny had grown up and was visiting his grandfather again, he asked, “Hey, can I have a beer?”

Grandfather: “Can your dick touch your ass?”

Johnny: “Hell yeah!”

Grandfather: “Well then go fuck yourself.”