In World of Warcraft, mounts and pets are "Bind to Account" items which cannot be stolen and sold, only transferred to characters on the same account. The only way to sell a pet/mount is if the user never enabled the item when it was received.
Officer Shin: Dr. Cooper, I'm sorry for your loss, but the Pasadena police department doesn't have jurisdiction in… Pandora.
Sheldon: That's from Avatar! World of Warcraft takes place in Azeroth. Goodness gracious, how are you allowed to carry a gun?
Sheldon: I thought this delay was so you could watch Wheel of Fortune with your mother.
Wolowitz: I am, she's just bleaching her moustache. Check it out. (yells upstairs) Hey, ma! "Before and After", four words, 17 letters, two Ns, one V.
Mrs. Wolowitz: Fanny pack of wolves!
(the guys are dumbstruck)
Leonard: That's incredible.
Sheldon: 3,000 hours. 3,000 hours clicking that mouse, collecting weapons and gold. It's almost as if it was a huge waste of time.
Sheldon: What kind of world do we live in where a man would take another man's battle ostrich?
Penny: I brought you a day-old cheesecake to cheer you up!
Sheldon: Stale pastry is hollow succor to a man who is bereft of ostrich.
Penny: Just say "thank you."
Sheldon: I thought I just did.
Officer: Mr. Cooper—
Sheldon: Dr. Cooper.
Officer: (to Leonard) Seriously?
Leonard: (nods) But not the kind with access to drugs.
Penny: (Looks at a CD Raj hands her) Oh, Beyonce. (Places it into the car stereo and it plays "Ride of the Valkyries) This ain't no Beyonce.
Penny: Give my friend his stuff back.
Todd: I don't know what you're talking about.
Penny: Well then, good news. Today's the day a girl's finally going to touch you in your little special place. (Kicks Todd in the crotch) Now give him his stuff back.
Todd: (In pain) Okay.
Sheldon: We did it! (Penny glares at him) I saw "We."
This episode's end titles has Chuck Lorre's Vanity Card #337.
Music: Ride of the Valkyries from Act III of Die Walküre (the second part of Der Ring des Nebelungen) by Richard Wagner
International Airdates: Australia: May 16, 2011 on Channel 9; United Kingdom: August 11, 2011 on E4; Turkey: November 22, 2011 on CNBC-e; Czech Republic: December 6, 2011 on Prima COOL; Slovakia: December 15, 2011 on Markiza
Thirsting for vengeance, Sheldon borrows the line "Cry havoc, and let slip the dogs of war," from William Shakespeare's 1599 play, Julius Caesar.