You wouldn't walk in there unless you knew how to use your fists.

— Ted Striker (Robert Hays)

5 seconds sound clip from the Airplane (1980) movie soundboard.

You can hear this line at 00:16:25 in the Blu-ray version of the movie.

Quote context

[...]

- I was in the Air Force, stationed in Drambuie off the Barbary Coast.

- I used to hang out at the Magumba Bar.

- It was a rough place, the seediest dive on the wharf, populated with every reject and cutthroat from Bombay to Calcutta.

- It was worse than Detroit.

- The mood in the place was downright ugly.

- You wouldn't walk in there unless you knew how to use your fists.

- You could count on a fight breaking out almost every night.

- I didn't go there that night to fall in love. I just dropped in for a couple of drinks. But suddenly, there she was.

- I was captivated, entranced. It hit me like a thunderbolt.

- I had to ask the guy next to me to pinch me to make sure I wasn't dreaming.

[...]