
by abandoning HUMAN interaction
and allowing yourself
The Big Bang Theory Season 5, Episode 14

there's another HUMAN being.
The Big Bang Theory Season 5, Episode 21

It's because of people like you
people like me can limit our HUMAN contact.
The Big Bang Theory Season 8, Episode 7

guess who just did it
HUMAN style.
The Big Bang Theory Season 7, Episode 15

you also have a HUMAN half.
The Big Bang Theory Season 5, Episode 20