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!!!!