No sure if this is a good idea but i did see a news site automatically fire a click event every minute that the user is actively reading their article(until 5 minutes). They determine active reading by checking if the browser tab is active (i.e the user has not minimized the browser window or switch...

You can always set alerts to your regular page reports in alert manager to alert you if the page view (or any metric) has spiked or dropped by x% as compared to the previous day/week/month . SC will send you a mail/mobile alert every time the conditions you set are true.