I have gotten the money the three times I was given this challenge. I tell females to forget pepper sprays etc. It is liquid lye and will melt a jerks eyes out of his head. And oven cleaner is legal in all 50 states. Don't let it happen if you can.
Prevention is the key to self defense.
The truth is that you are punished more severely for maiming someone than killing them. This is especially true in civil court. Personally, I don't care if a would-be rapist is flayed by his intended victim. However, I doubt very much that the courts share my opinion.