From the front seat of a 717, and I'd guess many a jet, one can't see the tug driver. An infrequent occurrence is to note that the tug is in position and call for pushback, only to be told, "there's no driver" when advising the venerable gingerbeer that we're ready to pushback.
slight thread kreep
When I was a youngster (baby boomer - just) Aussies were known for giving a fair go. Now it seems to me, sadly, that we're known for hanging sh!t where ever we can.