Yes but I was lucky and it let go instead of wrapping me up in a ball. I know better but my naughty was an unzipped hooded shirt. High on everyone's taboo list when working on or around engines should be loose clothing, Every CS engine came with Gibb key guards,, well at least back to 1938 which is as early as I have had in the shop and that ought to tell us something? In an age when they guarded nothing, they guarded the Gibb keys. The covers would not be hard to reproduce but one of the Indian short steps is the flywheel hubs are not machined for them. After the near miss my working clones had the shaft and key head areas wrapped with several layers of heavy tape. Looks like chit but I will be alive to take the harassment.