"profoundly alter your mind".. ha... you people need some experience before your so quick to judge.
Maybe you should read some of my posts. This isn't about whether a player can smoke or drink and still have his or her motor skills or focus. This is not about the affects it has on that player, but rather the affect it has on other players and the liabilities of the field owner. On public fields like flag raiders, cops can come by at any time and give shit to the field owner and possibly fine them because of that persons actions.