
Yes, it's what a RATIONAL person does
when his entire life's work is invalidated...
The Big Bang Theory Season 1, Episode 12

Kandorian dry-cl...? I give up. You can't have
a RATIONAL argument with this man.
The Big Bang Theory Season 2, Episode 11

to restore order
and RATIONAL leadership.
Game of Thrones Season 7, Episode 3

but Sheldon being A
RATIONAL, thoughtful person?
The Big Bang Theory Season 11, Episode 14

you're a RATIONAL man.
Game of Thrones Season 8, Episode 4