Amy: Have you tried letting go of the rope?
Sheldon: What, are you crazy? I'm on a unicycle.
Amy: All right, well, have fun.
Sheldon: Wait, I need help getting down.
Amy: Well, what do you want me to do?
Sheldon: Drag out our mattress and put it over here, then go across the hall, get their mattress and put it over here. But before you do any of that, scratch my nose.

Amy: Where did you get it?
Sheldon: Howard said I could borrow it, Bernadette said forever.

Howard: So the key is, the moment one ball is at the top of its arc, you toss the next one.
Sheldon: Okay, I think I got that.
Howard: Uh, h-hold on. There's an old saying in juggling.
Bernadette: Is it "I'm going to die alone"?
Howard: No, it's "if you want to have fun, start with one." Yours we think, but we do not say.

Howard: All right, this is everything. What do you want to learn?
Sheldon: It really doesn't matter, as long as it's challenging.
Howard: Okay, well, how about, oh, I teach you some close-up magic.
Sheldon: Howard, I'm trying to make myself uncomfortable, not everyone else.

Bernadette: So you wanted to learn something physical and you came to Howard Wolowitz?

Penny: See, that wasn't so bad. He even picked up the check.
Leonard: Yeah. Although, when he was trying to figure out the tip, I'm pretty sure I saw smoke coming out of his ears.

Sheldon: Just to be on the safe side, am I in any danger of getting juggler's elbow?
Howard: No.
Sheldon: Are you sure? 'Cause I'm feeling a twinge.

Zack: So, Penny, what's going on with you? How's the job?
Penny: Uh, it's okay, I'm still in pharmaceutical sales.
Leonard: She's doing amazing. She can actually make a side effect, like 10% chance of liver failure, sound like a 90% chance of liver success.

Raj: You want a real challenge, try keeping me from eating more of these.
Sheldon: You're just using food to mask the fear that you're fundamentally unlovable and therefore going to be alone forever.
Raj: Damn it, he's good at that, too.

Penny: Oh, that's a nice offer.
Zack: You know, we'd make a great team. Or as we say in the menu business, I can't do this without Me N U.
Penny: Right, 'cause it spells "menu."
Zack: Yeah, right? It's funny. I got a lot of menu jokes, but that's my favorite.

Penny: Yeah, lying isn't my favorite part of the job. Actually, I'm not crazy about a lot of it.
Zack: Hey, if you're not happy there, I've been looking for a new head of sales at my company. And we don't sell drugs, just menus, so the only lie you'll be telling is we print on recycled paper. We don't.

Amy: What smells so good?
Sheldon: Raj is teaching me to make croissants.
Amy: Is this part of your super-aging?
Sheldon: Yes. Yeah, it seemed daunting at first, but then I realized, it's like the chemistry set I had as a kid.
Only, when your brother eats this, no one has to call Poison Control.

Penny: Hey, where's your fiance?
Zack: Oh, she couldn't make it. She had an emergency.
Penny: Oh, no, what happened?
Zack: I didn't ask.

Penny: Come on, I spent an entire plane ride with you talking about the trailer for Deadpool 2.
Leonard: Ha! I knew you weren't asleep.

Amy: Well, clearly mental tasks are not enough. Maybe you need to challenge your motor skills.
Sheldon: For the last time, I am not having a tickle fight with you.