Yes - it is a risk. It does not make it ok to have sex against someone's will.
Let me put it this way. If someone pisses me off they are running a risk that I will assault them. That does not make it ok for me to do so.
Uh ... obviously. If she decides to go through with the whole ordeal, then there's no going back. Besides, unless the guy's a machine or something, he'll be done soon anyway. It's her fault for accepting and then promptly changing her mind; I don't treat indecisiveness as a legitimate excuse.
It's still doing something to someone against their will.
Of course not. If she's on her "work" hours, then obviously not. Prostitutes know that sex can and will be rough with unknown males, and prostitutes know full well that they're going to have to do things with men that they don't want to do. It comes with the territory.
If a prostitute does not want to sell her body to a particular male, she is not obliged to. There's a difference between paying someone for a 'service' (vlech) when they are willing to provide it, and forcing them to do it whether they want to or not.
If they're married, absolutely. If not, the guy is free to divorce.
She's a human being. A piece of paper does not give him the right to do something to her against her will.
Kadark the Resolute