![The fight or flight instinct
is coded genetically.
The fight or flight instinct
is coded genetically.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
The fight or FLIGHT instinct
is coded genetically.
The Big Bang Theory Season 4, Episode 2
![You'll be at the airport
an hour before your flight.
You'll be at the airport
an hour before your flight.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
You'll be at the airport
an hour before your FLIGHT.
The Big Bang Theory Season 10, Episode 1
![- Um, have a nice flight.
- That's not really in my control, is it?
- Um, have a nice flight.
- That's not really in my control, is it?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- Um, have a nice FLIGHT.
- That's not really in my control, is it?
The Big Bang Theory Season 2, Episode 15
![All right, but if we're going
to use flight metaphors...
All right, but if we're going
to use flight metaphors...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
All right, but if we're going
to use FLIGHT metaphors...
The Big Bang Theory Season 1, Episode 6
![That's kind of like my uncle.
A flight attendant.
That's kind of like my uncle.
A flight attendant.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
That's kind of like my uncle.
A FLIGHT attendant.
The Big Bang Theory Season 6, Episode 18