Freaky job interview questions

It's hard to see it getting asked in many places but how's this for an interview question.
Crazy job interview questions: "UBS: If we were playing Russian roulette and had one bullet, I randomly spun the chamber and fired but nothing was fired. Would you rather fire the gun again or respin the chamber and then fire on your turn?"
It's hard to second guess what they'd look for: at face value exhibit your knowledge of statistics. But I think my answer might be, in the spirit of the response on the referenced site:
I think that I'd file the request as harassment and report it to HR. There's no way that such actions could pass health and safety and the macho culture that would generate such a scenario in the workplace is likely to be one which generates bullying. So I'd rather not do either of the alternatives: I'd rather reframe the situation altogether. And then, would I want to work for UBS if I'm likely to be shot?