How do you learn to not do insane things? How do you even know what is or isn't... impossible? The moment you step off a building and do not fall, either you're crazy, or the world is. Either way, you're no longer bounded by any rules.
Madness string 98336
My cat has been weighing himself 20 times a day on the FitBit scale... and FitBit is dutifully logging it.