debounce.js

// This doesn't work because the method is always unique
Ember.run.debounce(this, function() {
  // blah blah blah
}, 1000);

// This would run a comparison against target & "unique-id" rather than target & method
Ember.run.debounce(this, function() {
  // blah blah blah
}, 1000, 'unique-id');