# File lib/god/conditions/process_exits.rb, line 51
      def deregister
        pid = self.pid
        if pid
          EventHandler.deregister(pid, :proc_exit)

          msg = "#{self.watch.name} deregistered 'proc_exit' event for pid #{pid}"
          applog(self.watch, :info, msg)
        else
          pid_file_location = self.pid_file || self.watch.pid_file
          applog(self.watch, :error, "#{self.watch.name} could not deregister: no cached PID or PID file #{pid_file_location} (#{self.base_name})")
        end
      end