Yes, why not help out your co-workers and the custodial staff when you have a few minutes
Ruin your family life, and physical life. you will not have good friends, loose money, and everytime you drink/do drugs there is a chance that your next is your last (you dying) its very unsafe and can make you mean and irritatable when you are having a withdrawal (not good) you become desprate and might even steal to get money for more
C.) Air pressure.
Air pressure has nothing to do with breathing really. Air pressure is the pressure brought by the weight of air in the atmosphere of Earth.