The reason why everybody acts as an a-hole...

I've always said that science has the answer to 90% of the questions out there... and science once again brings us a good piece of advice with the following pie chart which states the possible outcomes of each woman, and explains why everyone wants to be an asshole,  or at least tries to be one...

The 10% of the answers remaining unsolved is why being an asshole comes naturally to some people... ¬_¬