...because he's afraid of being ALONE? (The Big Bang Theory Season 8, Episode 24)
Why? The theory he came up with JUST got mentioned in Scientific American. (The Big Bang Theory Season 8, Episode 18)
It ONLY refers to "Dr. Cooper and his team." Did you even talk about him? (The Big Bang Theory Season 8, Episode 18)
Is your objection SOLELY to our presence in the apartment while you were sleeping... (The Big Bang Theory Season 1, Episode 2)