My examples set things out explicitly just so that we could focus on the substantive issues. I wanted to avoid the distraction of questions like whether "It would be too bad" was, in context, a threat of force.

Your response suggests that you believe that Example 1 and Example 3 are both rape. Is that correct?

BTW, as an aside, to your reference to a business transaction -- as a lawyer I can tell you that people aren't always unambiguous even in business transactions. I'm on a case now where eight lawyers spent most of the day negotiating a written contract on a seven-figure deal and discovered after it was signed that they had different understandings about a key issue. The lesson, applicable to sex as well as to money, is that what you think is absolutely clear won't always be clear to someone else.