So if you are ever working oh so hard on a ruby on rails application and all of a sudden your application stops working and you have no idea why because the error looks like this:
/!\ FAILSAFE /!\ Mon Nov 12 17:27:15 -0700 2007 Status: 500 Internal Server Error wrong number of arguments (1 for 0) /Users/jbasdf/projects/indulge/vendor/rails/actionpack/lib/ action_controller/base.rb:513:in `send' .....
Step back. Call yourself and idiot and remove the method you just added because you can't ever name a method 'send' in your controller because it overrides default functionality and then pukes all over the place.
Bad programmer ... bad bad programmer.