
Is it maybe because, like Sheldon's work,
your sex life is also THEORETICAL?
The Big Bang Theory Season 6, Episode 9

It happens to THEORETICAL
physicists all the time.
The Big Bang Theory Season 5, Episode 17

Not just for THEORETICAL physics,
but for astrophysics.
The Big Bang Theory Season 8, Episode 6

It's very impressive.
For THEORETICAL work.
The Big Bang Theory Season 4, Episode 3

Theoretical physicists do not get canned.
The Big Bang Theory Season 1, Episode 4