You can always try exploring with permission.
Works better if you got some good cam gear, look and act like a pro.
Demo sites are prime candidates for this at the beginning of the demo cycle.
The demo contractor literally has complete control of the property during a demo.
Get on his site supervisor's good side and you're in like Flint... they can turn you on to future demos as well if you play it right.
Not easy to do but we'll worth the effort.
Your, their workers safety and the job are their primary concern; do exactly as they say.
Welcome to UER