Tasty Mystery Baskets of Clips

Your argument is lacking in all scientific merit.
...what's up with that?
...before he left the bottle.
There are always do-overs when my people play sports.
Leonard, look. Sheldon's hugging me.
Oh, yeah. Like you have a shot with Zac Efron.
Well, news flash, lady: David Underhill is 10 times smarter than me.
Yes, please, shut up.
Oh, well, that's what I am. Queen of the nerds.
He tried to take nude photos of you?
Thanks for letting me try out your motorcycle.
You know, because you're so into science.
...intended to guard the life essences of the plants until spring.
So are you and Leonard working on an experiment together?
- Do whatever you want. - Thank you. That's very gracious.
- That's David Underhill. So what? - So what?
- Excuse me, miss? - Yes?
Excuse me. Are you Leonard Hofstadter?
Oh, yeah.
So my question is...
While I am perfectly happy with the way things are...
Merry Christmas.
- No, just neighbors. - Really?
...Superman cleans his uniform by flying into Earth's yellow sun...
Hey, Sheldon. Are you and Leonard putting up a Christmas tree?
- Sheldon, I am very, very sorry. - No, no. I brought this on myself...
...and you're making me a little uncomfortable.
Excuse me?
Sheldon, what did you do?
In more ways than one.