Maybe those workers get your attention, but I am speaking generally about most people.

I went jogging the other day. Some guys were working on some electrical wires in a box in the street. They had fluorescent vests and a professional looking truck. I made eye contact, waved, and kept jogging right past them. Most people would have responded the same way as I did. Personally, I would not be able to make it through the day if I was suspicious of every worker in a fluorescent vest.

If they had been wearing drab clothing, I would have been suspicious.