You know, these experiments
are pretty HARMLESS.
The Big Bang Theory Season 12, Episode 17
I'm just a HARMLESS giant
from a foreign land.
The Big Bang Theory Season 9, Episode 10
That's kind of an overreaction
to a little HARMLESS necrophilia.
The Big Bang Theory Season 2, Episode 1
A little, but he's basically HARMLESS.
The Big Bang Theory Season 8, Episode 7
I'm just a HARMLESS little girl
with military grade spy equipment.
The Big Bang Theory Season 9, Episode 8