    # File lib/rubygame/event_actions.rb, line 159
            def perform( owner, event )
                    owner.method(@method_name).call( event )
            rescue ArgumentError => s
                    begin
                            # Oops! Try again, without any argument.
                            owner.method(@method_name).call()
                    rescue ArgumentError
                            # That didn't work either. Raise the original error.
                            raise s
                    end
            end