In such a scenario, the company should not copy the competitor's API without a license and rely on the fair use defense without first consulting a copyright attorney. (techcrunch.com)
So you can't use that defense for one second — maybe the chick is a lesbian anyway — did you ask to make sure? (religion.blogs.cnn.com)
Their body uses a defense mechanism to not eat certain things because they can choke on them. (babycenter.com)