When then editor Alan McKenzie told Robinson of his intention to transfer Medivac 318 to another author despite the fact that Robinson owned the copyright she got her lawyers involved. "For me it was a matter of principle and I had no choice, unless I was prepared to let 2000 AD hand my characters in Medivac and Zippy Couriers to someone else. I expected other writers to take advantage of the opening I had made and claim their own copyright, but I never heard if anyone did. I asked for and was given confirmation that I owned Medivac 318, Zippy Couriers and the Chronos Carnival. After that, I was never invited to submit a script again and those I did submit were refused. I had been warned that if I insisted on fighting for my copyright I'd never get work from then again, but I could afford to make a stand. I fully understand that other people couldn't." (Thrill-Power Overload by David Bishop).