Dang, that sounds like the one I have been looking for. I remember it well from the 70's, it played at Man and His World. I'm on cell service at the moment, so will check it out tomorrow. One question should answer if it is the one I think, is there a frenchman asking for work several times in French and then finally returns and say "any work"?
Dude. I also have been looking for this after seeing it at (I think) man and his world or Ontario Place. Yes this is it. Watch the whole thing and you will know why it was kept at arm's length.