Over the many years I've been pulling lumps out of cars, vans, trucks etc I think I must have missed disconnecting just about every option at some point.
Earth cables:lots of times, choke cables: yup forgot a few of them too, even a throttle cable on an Austin Allegro I seem to recall but I think my coup de grace must have been when I removed engine and box from a 6 month old MGB to discover I'd forgotten to disconnect the speedo cable, I thought it put up a bit of a fight!
D.