Men's Health put together a list of, VERY TRUE, unwritten rules.

My favorites include:

  • Always wear black.  It makes you look cool and slim.  But don't wear black jeans.  That's lame.
  • Never ask a woman for sex by saying "wanna have sex?"
  • Easy on the mayo.
  • When running in the park, do not take your shirt off...if you are a hairy son of a... 

Click here to read them all.