 Consider a situation where an engineering professor utters, “When a metal bar is heated, the change in its length is proportional to the change in its temperature” and suppose a student offers, “Not when someone is hammering on both ends of the bar.” Has the student shown that the teacher’s utterance was false? Maybe not. Notice that the student comes off sounding a bit insolent. In all likelihood, such an unusual situation as someone hammering on both ends of a heated bar would not have been in play when the professor said what he did. In fact, the reason the student comes off sounding insolent is because it seems that he should have known that his example was irrelevant. Notice that the professor’s sentence needn’t include some implicit ceteris-paribus clause in order for his utterance to be true; as this example illustrates, in ordinary conversations, plain old strict generalization sentences are not always used to cover the full range of actual cases. Indeed, they are rarely used in this way. If special scientists do make true utterances of generalization sentences (sometimes ceteris-paribus generalization sentences, sometimes not), then apparently nothing stands in the way of them uttering true special-science lawhood sentences. The issue here has been the truth of special-science generalizations, not any other requirements of lawhood.