Hydromechanics Of Defecation - Most Mammals Need Only 12 Seconds To Poop

 or that mammal will be dinner to a predator. 

Its freaking common sense. 

I wrote about this few years ago: 

If someone breaks this rule daily then their health and/or diet is not good. There is something fundamentally wrong with their microbiome which in turn also affects their thought process, outlook of life and god knows what else we don't know. 

Hence, we could cautiously come up with a heuristic that not only eyes but "time to poop" is also a window to someone's character (I am not sure what soul means so let's stick to observable, known and simple words here). 

It should take 12 seconds. But that technical word "hydrodynamics of defection" is something new I learned today.