Ignore him, he's just cranky
because Bert from the GEOLOGY lab
The Big Bang Theory Season 10, Episode 9
Geology isn't a real science!
The Big Bang Theory Season 5, Episode 1
Oh, uh, Stuart,
uh, Bert from the GEOLOGY lab
The Big Bang Theory Season 10, Episode 6
How did you figure out
that it was the GEOLOGY lab?
The Big Bang Theory Season 7, Episode 3
Why do we have a GEOLOGY book?
The Big Bang Theory Season 7, Episode 20