Under no circumstances will I ever purchase anything offered to me as the result of an unsolicited e-mail message. Nor will I forward chain letters, petitions, mass mailings, or virus warnings to large numbers of others. This is my contribution to the survival of the online community.
In stand up every joke is thought about so meticulously, and one word can completely change how the audience responds. You're up there with no safety net; you can't shirk responsibility. It's your thoughts; it's your voice. You can't blame it on the writing, you can't blame it on the editor. You are just up there completely naked.