Lesson number two, your foe's back can quickly become his front.

Haru The Great White Ninja, Haru "The Great White Ninja" (Chris Farley)

7 seconds sound clip from the Beverly Hills Ninja movie soundboard.

You can hear this line at 00:27:55 in the Blu-ray version of the movie.

Quote context

[...]

- If I do this thing for you, you must give me your solemn promise that you will not question my authority.

- No problem, man! I went to catholic school.

- All right then, Joey. I'll do what I can.

- Lesson number one, always be on your guard.

- Always be on my guard. All right. You the ninja.

- Lesson number two, your foe's back can quickly become his front.

- And lesson 34, the final technique for ripping a man's head off is by simply using your bare hands. This requires hard work and discipline. Years, sometimes decades to achieve. I suggest that you practice on chickens.

- Chickens?

- Ninja secret. Chickens.

- Ah, here is what I was looking for, Joey, my young friend. A Beverly Hills disguise.

- Something simple and natural, yet subtle and cunning.

[...]