facts: at any given moment at any given time the human response mechanism do not have 24/7 controls. As much as you would like to think you are in complete control of your bodily function you don't. It takes years to improve or have some routine functionality, as to why we question "why i did or did not do it that way instead?"
different body type, time, place, food/drug/air/consumption, life event priorities/issues/failures, memory flashbacks, etc. will succumb to LIFE.
the body while functioning must suppress certain functions from other parts of the body to have a 100% functionality to play video games, cook, drive a car, poop, have sex, shower, speak (fido) etc.... although we want to pinppoint a substance a reason for failure or dysfunction yet forget other aspects for reaction and timing levels of life we are not anyway near ready put on trial one drug as a wrong to an adult life.