
"I bet Leonard never tipped a COW
over on himself."
The Big Bang Theory Season 4, Episode 9

Now, while commonly known as a COW catcher,
I prefer the more accurate "COW exploder."
The Big Bang Theory Season 8, Episode 21

I guess the COW skull pictures
were cool, but a door?
Breaking Bad Season 3, Episode 11

And a COW and a penguin.
The Big Bang Theory Season 3, Episode 10

Whoops! Can't go any further,
there's a sacred COW in my way.
The Big Bang Theory Season 4, Episode 9