Maybe a drop wouldn’t be the worst situation in which to discover that your uni just acquired freewheel capability -I assume that’s what happens when your hub fails, as mentioned here. If it failed while you were speeding along on your 36, that might be more dangerous. It’s kind of surprising, given what’s been posted about KH hubs over the last few years, that anybody would choose one over Nimbus or some other brand. Nurse Ben, who started the thread I just linked to, says he had 3(!) KH hubs that failed.
Apparently the problem is that KH hub bodies are pressed onto the spindle and epoxied, and will eventually come loose, whereas the Nimbus hubs are simply welded.