Funny, this all reminds me of a discussion with a feminist friend of mine some years ago, who argued (wrongly in my view) that a man who failed to pay a prostitute for (willing) sexual services, was as guilty of rape as a man who had forced a woman to have non-consensual sex.

I had to explain to her the difference between non-consensual sex between adults and the breaking of a contract or verbal agreement between same. My analogy being the man she had to fit her double glazing. He fit her double glazing willingly, without the need for force or coercion, on the understanding that she would pay him after completion. Her failure to pay him, did not constitute force or coercion, but the breaking of an agreement. I don't think she ever got it though.