Leonard and Sheldon in “The Property Division Collision”

Leonard

[knocks on the door of 4B] Sheldon, I know what you did, now change the password back.

Sheldon

[opens the door] Well, powder me in sugar and call me a donut, if it isn't Leonard Hofstadter.

Leonard

Sheldon, I'm warning you, I can play this game, too.

Sheldon

If it's like your 3-D chess game, then you're out of your length, width and depth. Amy, get the Neosporin, somebody just got burned.

Leonard

Alright, I tried.

Sheldon

"Alright, I tried"? That should be the title of your autobiography. Ooh, a second-degree burn.