
...Serial Ape-ist 2: Monkey See, Monkey Kill.
The Big Bang Theory Season 8, Episode 20

where they glue MONKEY hair
to your ass
The Big Bang Theory Season 7, Episode 23

if you didn't have
MONKEY hair on your finger.
The Big Bang Theory Season 7, Episode 23

Spoiler alert: After the MONKEY sees, it kills.
The Big Bang Theory Season 8, Episode 20

Serial Ape-ist 2:
Monkey See, Monkey Kill.
The Big Bang Theory Season 7, Episode 19