The Platinum Rule is the rule above the Golden Rule. The golden rule being "love thy neighbor"; the platinum rule is "never ever, ever, ever 'love' thy neighbor" (have sex or intimate relations with them).
The Platinum rule comes from the Bro Code Article 83: A bro shall, at all costs, honor the Platinum Rule: Never, ever, ever ever "love" thy neighbor. In particular, a Bro shall never mix it up romantically with a co-worker.
The 9 Stages of the Platinum rule are: Attraction, Bargaining, Submission, Perks, Tipping Point, Purgatory, Confrontation, Fall Out, and Co-Existance.
Attraction: Getting attracted to the person(s) you see on a daily basis
Bargaining: Saying that all would be alright and the Platinum rule will not apply
Submission: Giving in to the relationship
Perks: Noticing the upsides to the relationship
Tipping Point: When you notice that it won't work out
Purgatory: The never ending suffering that will follow
Confrontation:Ending the relationship
Fall Out: A reaction, a bad one, from the confrontation.
Co-Existance: Learning to live with that person(s)
Such relationships will never work out and will go through all 9 steps if its with someone you see on a daily business.
Anthony: Hey I'm gonna take my doctor out on a date tonight!
David: Don't poop where you eat Anthony.
Anthony: What do you mean?
David: The Platinum Rule.
Anthony: No, this doesn't count.
-A few weeks later-
Anthony: You were right. This relationship was a total failure.
David:The Platinum Rule is proven once again.