When a man is attracted to a woman, being expected to take the sexual initiative does not increase his power, it increases his paralysis. The possibility of a lawsuit just intensifies the paralysis. Ironically, the more dangerous the waters, the more [telling dirty jokes] serves as a way of testing the waters: if she laughs, maybe she's interested; if she looks disgusted, maybe she's not. He would feel much more powerful if she took responsibility for testing the waters.