I second that!

Wouldn't Data be a much more appropriate analogy? As others have pointed out, Spock was a Vulcan. Vulcans have strong emotions but have chosen to suppress them in favor of logic. Data was an android, and as such was incapable of experiencing emotion until he received a specially designed chip from his creator. The analogy is all the more fitting, because while data could, eventually, learn to anticipate, recognize, and even imitate emotions and emotional responses, he was not able to actually experience emotion and the gut reactions or involuntary reactions that go with it.

This might backfire as well, but why not engineer some insects that like to eat the weeds, and dislike wheat and corn and so forth?