title: Ruby (/rails?) top level namespace
body: <p>I'm in the following situation:</p>
  
  <p>I'm building a site in rails. I have two classes with the name User. One is an ActiveRecord, the other is a custom class that I'd like to use for seeding my database. Question:</p>
  
  <p><strong>Can I refer to the ActiveRecord class named User from within my custom class named User?</strong> </p>