[After his "breakup" with Amy. Sheldon is replacing her with cats]
Leonard: Okay, fine. Live with cats. Be like my Aunt Nancy. She had dozens of them. And do you know what happened after she died? They ate her.
Sheldon: You don't have to sell me on cats, Leonard. I'm already a fan.
Leonard: Okay, fine. Live with cats. Be like my Aunt Nancy. She had dozens of them. And do you know what happened after she died? They ate her.
Sheldon: You don't have to sell me on cats, Leonard. I'm already a fan.
[After his "breakup" with Amy. Sheldon is replacing her with cats]
Leonard : Okay, fine. Live with cats. Be like my Aunt Nancy. She had dozens of them. And do you know what happened after she died? They ate her.
Sheldon : You don't have to sell me on cats, Leonard. I'm already a fan.
http://www.tv-quotes.com/shows/the-big-bang-theory/quote_20945.html