I always laugh at all the sayings in Star Trek from aliens that turn out to be human sayings. (This one sounds like another one of those; maybe most of them?)

In one of the movies (Return of Khan or something like that... It was one of the movies with the original crew in there and was a preceding movie to the Voyage Home Khan talks about the Klingons having a saying about revenge being a dish best served cold I :3

I laughed so hard.