It happens to THEORETICAL
physicists all the time.
The Big Bang Theory Season 5, Episode 17
I have to tell you that while I do have
a THEORETICAL understanding...
The Big Bang Theory Season 2, Episode 5
Theoretical physicists do not get canned.
The Big Bang Theory Season 1, Episode 4
...to succeed in THEORETICAL physics.
The Big Bang Theory Season 2, Episode 6
So now let's bring out THEORETICAL physicist,
Dr. Sheldon Cooper!
The Big Bang Theory Season 6, Episode 18