The Big Bang Theory2007

Sheldon Cooper:
It was me. I opened your toy... discovered it was broken, and didn't tell you.

Leonard Hofstadter:
Why would you open mine?

Sheldon Cooper:
I didn't, that was a lie. I opened my own toy... and it was already broken, so I switched them.

Leonard Hofstadter:
Well, you should talk to Stuart.

Sheldon Cooper:
I can't because that was a lie. Yours was broken in an earthquake and that's a lie.

Penny:
What is the truth?

Sheldon Cooper:
My Mr. Spock doll came to me in a dream and forced me to open it, and when the toy broke I switched it for yours. Later he encouraged me to do the right thing and I defied him. And then I was attacked by a Gorn.

Leonard Hofstadter:
Okay, that I believe.