Roulette

Load one bullet into the cylinder, then spin it. After that, point the gun toward you and pull the trigger...
...Wait, you can't do that! There's a one-in-six chance you'll die!

A one-in-six chance of death... Which means the failure rate is only one-sixth...
Hey, is that rule really okay?

I mean... if there's only a one-sixth chance of failing, wouldn't the game be too easy?
So...shouldn't it be the opposite?
Remove one bullet from the gun...and then use it while there are still five bullets loaded...

If you do that, there will be a one-sixth chance of success...
Yep, that would definitely make it a more thrilling game!!