Ignore him, he's just cranky
because Bert from the GEOLOGY lab
The Big Bang Theory Season 10, Episode 9
Why do we have a GEOLOGY book?
The Big Bang Theory Season 7, Episode 20
How did you figure out
that it was the GEOLOGY lab?
The Big Bang Theory Season 7, Episode 3
We are directly underneath
the GEOLOGY lab,
The Big Bang Theory Season 5, Episode 17
Geology. Oh!
The Big Bang Theory Season 7, Episode 20