One of my friends quit his job to play online poker about 2 years ago. He was doing exceptionally well, quadrupling his salary through a few hours of poker playing. All was well until a few weeks ago when online poker was banned. All of a sudden he found himself out of work!
As Robert Kiyosaki says, always have multiple streams of income [or was it that huckster Bob Allen???]. The same thing could happen to almost anyone in any profession. You could wake up one morning to find some stupid legislation has taken away your income.
Ok, maybe its not the same thing, but if you depend on any one source of income there’s a risk that you should try to mitigate.