Relatives of a man you once killed - my granddad, and now we shall avenge him.
9 seconds sound clip from the The Invincible Armour movie soundboard.
You can hear this line at 01:40:02 in the DVD version of the movie.
Quote context
[...]
- Brother Chow, attack the groin!
- You think you're the only one who knows that technique!
- Relatives of a man you once killed - my granddad, and now we shall avenge him.
[...]