Looks like metal fatigue to me, but your mention of mind powers made me realize that the most obvious difference between metal fatigue and mental fatigue is the letter N, and Ninja begins with N. You may be on to something. Maybe not
So claiming that it failed due the torque applied by my ego wouldn't pass muster then.
It's a fatigue failure, not an ultimate strength failure. Fatigue failures happen at far lower stress levels than the ultimate strength of a material, sometimes as litle as 10%, but over millions of cycles. That means that your ego torque wasn't too much for the crank to handle all at once, you had to apply it over and over millions of times before the crank got annoyed and gave up. Something like this: "Man this guy pisses me off. If i just start to crack a little, maybe he'll take me off this bike and I won't have to listen to him anymore, but I'll still be in one piece."