
Oh. Leonard, don't trouble yourself.
He's STUBBORN.
The Big Bang Theory Season 1, Episode 4

Your father was a STUBBORN old ox.
Game of Thrones Season 3, Episode 3

The free folk are STUBBORN.
Game of Thrones Season 5, Episode 8

- No.
- He's even more STUBBORN than you are.
Game of Thrones Season 6, Episode 8

I know how to deal
with STUBBORN children.
The Big Bang Theory Season 3, Episode 14