You know, Silver and I make the balls/chin joke often at each other, but I think he forgets when I first told him about that gag:
My older brother was/is smarter and funnier than I. He's super sarcastic and I always looked up to him to get his approval. Yet, he always had the best way to shut me down with an insult.
In high school, I'd say, "Hey, Brad! I got an A++ on my math test to day!" He'd dryly say, "Really. Come here." Then he'd scratch under my chin and say, "My balls itch."