"I will try to express myself in some mode of life or art as freely as I can and as wholly as I can, using for my defense the only arms I allow myself to use -- silence, exile, and cunning." -- James Joyce
Link doesn't work.
I guess if we're splitting hairs, the most accurate term isn't "robbery," but rather "extortion."
Or, if we wanted to be really, really, really accurate, we could call it "taxation."