![It really doesn't matter
as long as it's challenging.
It really doesn't matter
as long as it's challenging.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
It really doesn't matter
as long as it's CHALLENGING.
The Big Bang Theory Season 10, Episode 22
![](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
"The CHALLENGING
climate of Scandinavia
The Big Bang Theory Season 12, Episode 23
![Not challenging?
I was humiliating the man.
Not challenging?
I was humiliating the man.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Not CHALLENGING?
I was humiliating the man.
The Big Bang Theory Season 6, Episode 6
![The guy's a genius. Maybe you weren't
challenging enough for him.
The guy's a genius. Maybe you weren't
challenging enough for him.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
The guy's a genius. Maybe you weren't
CHALLENGING enough for him.
The Big Bang Theory Season 6, Episode 6
![I know what a challenging man he could be,
I know what a challenging man he could be,](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I know what a CHALLENGING man he could be,
The Big Bang Theory Season 9, Episode 14