We recently had a near miss on a jobsite. We were dropping a dumpster for a contractor that was tearing a house down. Driver got unsite to do a switch and got out of truck to unhook the dumpster and the operator started to move dumpster with the excavator and the operator did not know the driver was unhooking the cable at that time. The operator assumed the driver was not unhooking the cable at that time and the driver assumed the operator would not try moving the dumpster around until he was done doing the switch.
Always make sure the operator sees you before you get out the truck and make sure the operator is paying attention before you go in any blind spots. Always make eye contact with equipment operators when leaving their field of view.