Data, as allways, you are correct. I do wait for the weekends on busy projects, so I can get closer to the site/fence. This is a case in point. On Sunday I was able to stand where the cement trucks normally off load during the week.
cca, I only talk to the hard hats if I have a question about the process they are using. They usually are very responsive and helpfull. Most are very proud of what they do and want to talk about it.
I even have some tower crane operators using my crane pics to explain, to friends and family, what they are "UP" to during the day.