1005 - The Hot Tub Contamination
Aired October 17, 2016

The Hot Tub Contamination

Leonard and Penny must separate a quarreling Sheldon and Amy when their cohabitation does not go as planned, and Sheldon threatens to break off their relationship when Amy refuses to adhere to the bathroom schedule. Also, Howard and Bernadette find unexpected guests at their house when they decide to stay home from a planned vacation.

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Guest Stars: Kevin Sussman as Stuart

Writers: Chuck Lorre (Story), Maria Ferrari (Story), Tara Hernandez (Story), Steve Holland (Teleplay), Eric Kaplan (Teleplay), Jim Reynolds (Teleplay)

Director: Mark Cendrowski

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Episode Notes

  • The title refers to Stuart and Raj's unauthorized use of Howard and Bernadette's hot tub when they're supposed to be away from home.

> Sheldon's Knock

Sheldon explains to Penny that the reasoning behind his unique knock is that, as a child, he walked in on his Dad having relations with another woman. Sheldon explained, "it's also why I never open a door without knocking three times. I mean, the first one's traditional, but two and three are for people to get their pants on."

Quotes

Sheldon: It's also why I never open a door without knocking three times. I mean, the first one's traditional, but two and three are for people to get their pants on.

Bernadette: Uh, I left my phone downstairs!
Howard: Damn, so did I.
Bernadette: Wait, I have my iPad.
Howard: What are you going to do, e-mail 911?

Sheldon: When I see a pretty gal walking down the street, I think, "hubba hubba" like any other guy.
Penny: You kiss your mother with that mouth? 'Cause it's fine.

Amy: Well, for starters, there's nothing wrong with keeping our toothbrushes in the same holder.
Penny: Sheldon, what do you say to that?
Sheldon: I think we should see other people.

Penny: Sheldon, she wanted to share a toothbrush holder with you, and now you're at an ice cream parlor trying to pick up women!