Why be POLITE to the world's leading
expert on the dung beetle?
The Big Bang Theory Season 3, Episode 2
- Here he comes.
- Right. Be POLITE.
The Big Bang Theory Season 10, Episode 9
- Why?
- Because it's POLITE.
The Big Bang Theory Season 1, Episode 13
Here comes our new boss. Be POLITE.
The Big Bang Theory Season 1, Episode 4
Because you raised me
to be POLITE.
The Big Bang Theory Season 11, Episode 13