Of course not.
I'm a THEORETICAL physicist.
The Big Bang Theory Season 2, Episode 23
...because he said
it was a THEORETICAL nut conflict.
The Big Bang Theory Season 8, Episode 21
So now let's bring out THEORETICAL physicist,
Dr. Sheldon Cooper!
The Big Bang Theory Season 6, Episode 18
It happens to THEORETICAL
physicists all the time.
The Big Bang Theory Season 5, Episode 17
Is it maybe because, like Sheldon's work,
your sex life is also THEORETICAL?
The Big Bang Theory Season 6, Episode 9