 In elucidating this normative dimension of force, we have sought to characterize speech acts in terms of their conversational roles. That is not to say that speech acts can only be performed in the setting of a conversation: I can approach you, point out that your vehicle is blocking mine, and storm off. Here I have made an assertion but have not engaged in a conversation. Perhaps I can ask myself a question in the privacy of my study and leave it at that–not continuing into a conversation with myself. However, a speech act’s “ecological niche” may nevertheless be the conversation. In that spirit, while we may be able to remove a speech act type from its environment and scrutinize it in isolated captivity, doing so may blind us to some of its distinctive features.