It's not about long hours or volume. It's about metrics. For a 13 hour shift, your energy wanes down towards the end, and it'll be impossible to finish all the side chores while maintaining good metrics, i.e., promised verified time, waiter percentage, patient care calls, late fill request, save a trip calls, etc. Once metrics plummet, DM, DL or RXM will take improvement action plan which pushes you work harder, come earlier, leave later, etc. for the chains, long shifts are totally a nightmare unless you do not care. Don't get me wrong, I totally like 12 hour shift at Wag and 14 hour at CVS when I was a floater. But with more responsibilities carrying on, I dread taking those. Remember, it's 2020 already, and new metrics requirements are on the way per conference calls.