Everybody involved around an aircraft should keep aircraft servicability in mind, and if something odd is noticed, they should bring it to the crew’s or push chief's attention. Over the years, I have occasionally been called out by a loader to check a hold door, or an oil/hyd leak, and I never mind checking.
The incident in this thread reminds me of the BA double cowl unlocked incident.
What ever happened to:
“Ground from flight deck, can I have your checks please?”
“Yes flight deck; all equipment removed, all hatches and holds secure. All intakes clear, beacon rotating, tug connected, chocks removed, standing by”.
?