Warning Pitchers

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Now I know that we all hate to draw comparisons to baseball, but I have a situation that has been in my mind for some time. Here it is:

Home pitcher is pitching inside all game, and is throwing a rather nice game all together. However, her team is down by a couple of runs. She has one get away from her with a batter crowding the plate, and plunks the batter in the rear (batter turned to try and avoid contact). If the HBP was intentional, it was not so flagrant that I felt the need to do anything about it.

Next Inning, visiting pitcher sees a batter somewhat close to the plate, and throws one inside. Sure 'nough - hit batter. Now, I'm pretty sure that I see the pitcher give a little smirk.

My question, what do the rules dictate in these types of situations (rule book is unavailable right now)? Here are some possible options:

1. Toss visiting pitcher for what I believe was intentional.
2. Warn the visiting pitcher, and toss her next time?
3. Warn both benches after the home pitcher hit the batter (baseball reference). Toss both pitchers if anyone else gets hit, or toss the pitcher that hits a batter the next time?
4. Toss everyone out, go home early and spend the night filling out stacks of paper?
5. Other optoins?

Thanks,