That's the true beauty of this rule.. you can use it everytime you messed up... I luv it..
When ever people show up and tell me what i was doing when i was extreemely drunk , my responce will be 1: Why do you tell me that you jerk, i was there!! 2: i must realize that even i was drunk but someone always fucking drunk. and 3 ofcourse: I don't remember therefore it never happened!! tadaa!!!!