Oh, we eat, we just don't get a 30 minute or 1 hour lunch.
I had a similar gig when I did flagging (holding a stop / slow sign) for a road construction company. You had to stand there for 12 hours a day. No breaks, no bathroom. You literally had to eat a sandwich while holding the sign. If you needed to use the restroom, you’d run off into the bushes, do your business and come back immediately. You’d think just standing in one spot all day would be an easy job but it was way more miserable than having a job where you’re busy & doing a lot of walking.