Reason 4: The Sock Drawer Singularity
A phenomenon where the sock drawer becomes so overwhelmed with missing socks that it ceases to exist as a coherent entity.
It's a fate worse than the Great Sockpuppet Uprising of '07.
Read more about the Sock Drawer Singularity
Or, for a more... in-depth analysis, try Sock Puppet Revolt 101 or Sock Puppet Revolt 103.