Sheldon is troubled when Leonard decides to get minor surgery performed on his nose. Sheldon tries to convince Leonard not to get the surgery in case he doesn't make it. Meanwhile, Raj is distraught when he finds out his parents have divorced just before their 40th wedding anniversary, causing Howard and Bernadette to pay more care to their own relationship.

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Writers: Steven Molaro (Story), Bill Prady (Story), Maria Ferrari (Story), Eric Kaplan (Teleplay), Steve Holland (Teleplay), Tara Hernandez (Teleplay)

Director: Anthony Rich

Viewers: 16.9 million Households Rating: 10.7/17 Adults 18-49 Rating: 4.5/15

As Sheldon and Amy play a game in the apartment, Leonard and Penny return from the doctors. Leonard has been diagnosed with a deviated septum and has elected to have minor surgery to correct it. Sheldon is immediately concerned and doesn't want his friend to have risky surgery. Amy points out that Sheldon has often complained about Leonard's snoring, but Sheldon claims to be used to it now.

Later that night, Sheldon is watching Leonard snoring when he suddenly wakes up. Sheldon is worried that Leonard will die during the surgery. Elsewhere, Raj is having dinner with Howard and Bernadette in their apartment and discussing getting a gift for his parents' fortieth wedding anniversary.

The next day, Leonard arrives home to find Sheldon with a whiteboard listing all the possible ways Leonard's surgery could go wrong. Leonard understand his friend's concern but promises he won't die. Since the surgery is a week away, Leonard promises to think about it. Howard goes to Raj's apartment to hang out, finding Raj on the phone to his father. Raj learns his parents have separated and says it's okay as long as they're happy, but he breaks down when he hangs up the phone that he comes from a broken home.

Leonard and Penny are filling in forms at the hospital, having lied to Sheldon that they were going to a pool. As Amy drives Sheldon, he gets suspicious about where Leonard and Penny really went, leading Amy to confess Leonard is actually getting the surgery. Sheldon demands to go to the hospital for Leonard. Sheldon and Amy meet Penny in the waiting room with Leonard already in surgery. Elsewhere, Howard and Bernadette show up at Raj's office with muffins to cheer him up.

Back at the hospital, a minor earthquake causes the lights to go out. A concerned Sheldon worries that his friend's sinus operation has now turned in to a lobotomy. As Sheldon runs to find Leonard, he crashes into a glass door and falls to the great. Howard and Bernadette are discussing their relationship in their apartment. They don't want to keep things bottled up like Raj's parents , so they decide to start telling each other what they like, and eventually what they don't like about each other.

Sheldon and Leonard are sitting on their couch in their robes with bandages on their noses. Penny decides to take a picture for this year's Christmas card. Leonard apologizes for not telling Sheldon about the surgery, but says he was worrying about nothing. Sheldon lists all the possible post-surgery complications that could still affect Leonard. Penny and Amy realize how much Leonard means to Sheldon. Sheldon shows Leonard the urn he ordered for him in case he didn't make it.