 But, normally, B would have implicated more than this: that C is the sort of person likely to yield to the temptation provided by his occupation. According to Grice, the ‘calculation’ of conversational implicatures is grounded on common knowledge of what the speaker has said (or better, the fact that she has said it), the linguistic and extra linguistic context of the utterance, general background information, and the consideration of what Grice dubs the ‘Cooperative Principle (CP)’: