Lily: "Chafing or blisters can occur in a number of areas, including the feet, armpits, or even the nipples. Try using some petroleum jelly on the affected areas."
Marshall comes into the apartment scratching himself and goes to the bathroom.
[Marshall runs into the bathroom. He takes his shoes and socks off and applies Vaseline to his feet. Then he takes his shirt off and applies Vaseline to his nipples. He stands up in and faces the mirror as he keeps massaging his nipples.]
Marshall: Oh, gosh! Dude, you are a terrific runner. Tomorrow you're gonna run and finish the New York City Marathon! You're the best. You look good. Nobody does it better than you.
[Robin comes into the bathroom behind Marshall]
Robin: Marshall? Oh, my God!
[Marshall recoils in fear and falls to the floor]