
I realize it's IRRATIONAL,
The Big Bang Theory Season 10, Episode 18

You know, Pythagoras had
an IRRATIONAL fear of beans.
The Big Bang Theory Season 9, Episode 10

And an IRRATIONAL constant.
The Big Bang Theory Season 5, Episode 16

Yes, but you didn't portray her
as completely IRRATIONAL.
The Big Bang Theory Season 1, Episode 7