I love this so much.
And, to be completely honest: I DID have a fuck you fund. And when my first serious boyfriend thought that a good way of ending an argument was to smack me across the face, I had options and I left him. When the sales guy I worked with tried to grope me, I stopped that so fast I'm pretty sure his head is still spinning. And when my second boss tried to get me to falsify financial documents (in a publicly owned company, no less, yay fraud...) and threatned to fire me if I didn't, I had the ability to look up at him and inform him that if he fired me for that, I had copies of the documents at home and enough money to live on while I reported the financial discrepancies and investigated legal options regarding wrongful dismissal.
These are not uncommon examples. A lot of ladies go through similar shit. Having the power to say 'fuck off, I'm not taking this shit' is worth WAY more than any new car.