could be evidence
of ALIEN civilization.
The Big Bang Theory Season 12, Episode 20
[IN ALIEN LANGUAGE]
The Big Bang Theory Season 8, Episode 21
They exist in case we ever make contact
with an ALIEN civilization.
The Big Bang Theory Season 9, Episode 10
...discover our weaknesses,
and report back to your ALIEN overlords.
The Big Bang Theory Season 3, Episode 15
My point is, pretending to be an ALIEN
is a valuable coping mechanism...
The Big Bang Theory Season 8, Episode 8