Messy? Can you think of a more clear implementation of soft_destroy_method?

soft_destroy.rb

module SoftDestroy
  # accepts a method or proc to execute as a soft deletion routine
  # replaces existing destroy method with new soft destroy
  def soft_destroy_method(&block)
    if block_given?
      self.class_eval do
        def destroy_with_forgiveness
          block.call(self)
        end
        
        alias_method_chain :destroy, :forgiveness
        alias_method :destroy!, :destroy_with_forgiveness
      end
    end
  end
end

class Example < ActiveRecord::Base
  extend SoftDestroy
  soft_destroy_method { |e| e.update_attribute :deleted, true }
end

Example.find(1).destroy  # will set deleted flag on record
Example.find(1).destroy! # will destroy record using ActiveRecord method