![...he's allergic to Earth nuts,
but I'm the alien.
...he's allergic to Earth nuts,
but I'm the alien.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...he's allergic to Earth nuts,
but I'm the ALIEN.
The Big Bang Theory Season 8, Episode 21
![Okay, here's a question.
As an alien pretending to be human...
Okay, here's a question.
As an alien pretending to be human...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Okay, here's a question.
As an ALIEN pretending to be human...
The Big Bang Theory Season 8, Episode 8
![...who's been replaced with an alien pod.
...who's been replaced with an alien pod.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...who's been replaced with an ALIEN pod.
The Big Bang Theory Season 2, Episode 6
![...discover our weaknesses,
and report back to your alien overlords.
...discover our weaknesses,
and report back to your alien overlords.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...discover our weaknesses,
and report back to your ALIEN overlords.
The Big Bang Theory Season 3, Episode 15
![There was no alien.
[chuckles]
There was no alien.
[chuckles]](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
There was no ALIEN.
[chuckles]
The Big Bang Theory Season 12, Episode 18