Sheldon enters the hallway where the temperature is much colder than he anticipated. He hears laughter and yells from down the hallway. From the direction of Kripke's lab. He has packed all of the food to his backpack, except for a couple of things that he hid in the office. Sheldon sneaks the hallway to the door of Kripke's lab.

He takes a mirror from his pocket and uses it to look through the small glass window in the door. Who has a window in their door, he says to himself. A door is supposed to shield your room from other people's gazes and keep the heat in. Having a window in a door is basically the same as inviting people spy on your personal life. Or trust people enough that they don't spy on you through the window in the door. Which they will because people can't be trusted.

Sheldon sees people dancing in the room and sees his friends there, too. He moves his head to the window to have a better look inside the room. The window is a bit unclear and foggy but he can see his friends dancing. Sheldon waves his hands to get Leonard's attention but the window is so steamy that he suspects his friends cannot see him. Sheldon opens the door and notices just how warm it is in there.

It's like a sauna in here, you are going to ruin the door and moss and fungus is going to start growing here, he says. The others don't take too much notice of him, still dancing to the music.

Leonard, he says waves, but Leonard keeps just dancing. Leonard, Sheldon shouts louder and waves his hands in the air.

I can't hear you, the music is too loud, Leonard yells as a reply.

What did you say, I can't hear you because the music is too loud, Sheldon yells back at Leonard.

Leonard shrugs his shoulder and gestures he cannot hear what Sheldon is saying. Sheldon sees the speakers where the music is coming from and turns the volume down.

Much better, you don't mind if I have a short conversation with Leonard, do you. Leonard, you have to take me home. Penny is on my seat and ruining years of work. That cushion was just perfectly shaped, I had used so much energy to shape it to my specifications.

You have been sitting on the cushion for 10 years and left you print on it. I would not call that adding your specifications to it.

You may call it what you want, but I really need to get home, now. Please, I'll owe you one. And besides, I will be also saving you from probably a lethal disease you are going to get by staying that long in this lab with all this moisture. Can you think of all the things that are now floating in the small water molecules in the air that have been sitting on the ceilings and floors for all the years? If I remember correctly, this lab used to be a bio lab studying exotic diseases before Kripke got it.

What, is that true, the girls ask, sounding scared.

No no, that is definitely not true. He is just trying to get Leonard to take him home, but your lies don't work. And besides, it is still snowing so the roads are still closed. Go talk to the climate guys, they visit the poles all the time and should have gear for weather like this and leave us alone, Kripke says.

But the girls were having a party in our home and messing with my seat and your idea is actually pretty good. Looks like this department has some hope after all and I'm not the only one contributing to the cause.

What is this you say about a party, Howard asks while still dancing slowly by himself.

That sounds very interesting, Raj says. He is dancing with one of the girls.

The girls were having a party, I reached them on Skype a while ago. But gotta go now, bye, Sheldon says and leaves the lab.

Should one of us go with him, Howard asks. If he decides to walk home or something? Leonard, you live with him, you go.

No, I think I'll wait in this warm lab instead. He is a grown man, he knows what he is doing.

He is going home because someone else is sitting on his sofa seat, Raj says.

Dammit, Leonard says and walks behind Sheldon.

Wait, he yells. I'm coming too. Or at least stopping you from doing anything stupid.