Cosmo has released its list of things that make most men insecure:

  1. Not having enough hair.
  2. Having a lame "how we met story."  We don't all have a cute story like you see in the movies.
  3. Being short on money.  Blame that on the whole "hunter/gatherer" society thing most men face. 
  4. Aging.  We would've put this at #1.  You ever met a man who colors his hair and/or wears an earring after age 50? 
  5. Grand gestures of love.  See #3 on this one.  Who has the money to do this for their lady?