D.G.I.F.U
A sacred rule that keeps people from doing stupid things, like talking during a movie, texting during a meeting, or singing in the shower like a total idiot.
D. G. I. F. U., I almost talked during the movie. I remembered D. G. I. F. U. and stayed quiet.
D. G. I. F. U., I was texting during the meeting. I almost got in trouble. D. G. I. F. U. saved me.
D. G. I. F. U., I was singing in the shower like a total idiot. I almost woke up my parents.