title: Rspec Running Tests Results in Validation Errors
body: <p>For example:</p>
  
  <p>I run a test and all asserts pass, but I run the test again, and in my case, I receive the following error:</p>
  
  <p>Validation failed: Email has already been taken</p>
  
  <p>It seems adding: sequence(:email) {|n| "nobody#{n}@xyz.com" } for factorygirl is pointless</p>
  
  <p>The tests seem to pass sometimes and others fail for errors reasons like these.</p>
  
  <p>Please advise on the problem/solution.</p>