Filip asks what sort of "Zebra" I ride. I have a '91 model ZZR-600 (AKA ZX-6, ZX-600C, or "Ninja 600"). My wife rides a '92. They're almost identical, except mine is black/grey, and my wife's is two-tone blue.
I also have an '82 GT-750/KZ-750P (plus parts), an '83 GPz-750/ZX-750A (plus almost a whole extra bike's worth of parts), and parts from a ZZR-250 which had it's life cut tragically short.
I don't have a problem, I could quit any time I want.