Post History
As others have said, if it doesn't advance the plot, leave it out. A story doesn't have to mention every little thing the characters do. A story that did would likely be mind-numbingly boring. "Th...
Answer
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/19864 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
As others have said, if it doesn't advance the plot, leave it out. A story doesn't have to mention every little thing the characters do. A story that did would likely be mind-numbingly boring. "Three ninja assassins prepared to burst into the room. The first assassin moved slightly to the left to give the second assassin room to open the door. Then the second assassin inhaled. The third assassin scratched his ear. The first assassin moved his left foot slightly to the left. The second assassin grasped the doorknob and turned it. The first assassin's heart beat four times. The third assassin had a slight itch on his left knee." Etc. Okay, there could be times when such details would be good and appropriate, like if you're trying to emphasize that someone is bored while waiting, or to emphasize the human frailties of a character while he is performing some dramatic action. But barring that, it would just be boring, tedious detail that would bog down the plot to a ridiculous extent. Add to that, going into detail about someone using a bathroom would just be unpleasant. Yes, I'm aware that people have to urinate. But I don't want to read detailed descriptions of the process. Again, it could be appropriate if the point is to emphasize the mundane tasks of human life. But usually the readers reaction would just be "yuck, can we get back to the clues to the murder".