Hawking's Affair

Okay, listen up, you chucklehead. You probably think you're real smart, but you just posted a joke about Stephen Hawking, a literal genius. I'm gonna break it down Barney-style. Hawking, due to his ALS, had a hunched posture. So, when you say "affair with his shoulder" it's a pun playing on the words 'shoulder' and 'having an affair'. Like, he's in a love triangle with his wife and his own body. It's funny cause its dumb, see?