How to piss off your girl friends ... start a conversation about pre-nups. Well, Mark Zuckerberg's got $19bn now, and he also just got married. You cannot say pre-nups are silly because about 50% of marriages end in divorce. I think Mark is the kind of guy who would probably offer at least $500m to his wife if they ever get a divorce, if so, I think that's more than fair. Better stop talking now before I get bombarded.
p/s Trump is an asshole ...
They were words of wisdom from one billionaire to another - whatever you do, make sure your intended signs a pre-nuptial agreement before you marry.