The Big Bang Theory: Progressively Harder Sheldon And Penny Friendship Quiz

Leonard Penny Sheldon Big Bang Theory
CBS

11. Why Can Neither Sheldon Nor Penny Go To Switzerland With Leonard?

They're In A Car Accident

They Get The Flu

They Lose Their Passports

They're Arrested
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Christopher Weaver hasn't written a bio just yet, but if they had... it would appear here.