Don't KNOCK it down while I'm gone.
Game of Thrones Season 6, Episode 5
-(KNOCK ON DOOR)
- BERT: Hello? Anybody home?
The Big Bang Theory Season 10, Episode 21
...motivating you to go back
and KNOCK me unconscious.
The Big Bang Theory Season 1, Episode 14
BERNADETTE:
Knock, KNOCK.
The Big Bang Theory Season 4, Episode 9
Knock, KNOCK.
Breaking Bad Season 3, Episode 12