I am sure it must painful sitting there as an outcast, and of course that is the point. They want it to hurt, they want to break you so that you bend to their will and never have an independent thought ever again, that's how cults work. it's how they maintain control, not just of you but of the others as well. If you can make people be deliberately cruel to another person you have made them more likely to stay in the cult, as people will then have to justify their cruel behavior to themselves, they Then must believe there was a good reason.
I am sure the others would be shocked and saddened if you did something like that, but they would find a way to justify the cruelty in their mind, they would have to in order to live with themselves. Cognitive dissonance would not allow them to see their culpability.
I know it was just a passing thought, but I can't help but be concerned for you well being. I hope you have a support system of people that can help you get through this. While shunning is considered normal in the JW world, it's not normal behavior, it's one of the most hurtful things you can do to a person. Perhaps there is a support group you can join? You shouldn't have to go through this alone. I also highly recommend meditation. it's something you can do while sitting at the Kingdom Hall and could help you get through the next few months (you do not have to close your eyes to meditate, so no one would know).
I am always available via PM if you need to vent.