One time my DH phoned that he had car trouble and would I come tow his van home. It was about 15 miles from home. I very carefully positioned my van in front of his and he hooked on a chain. Then he told me to start off very gentle and drive smoothly so that the chain didn't jerk. OK, I do exactly that. I am driving along (by the way, it is dark) very smoothly and I'm thinking that we are going so smooth that it is like there is nothing back there. I am about half way home. Sure enough there is nothing back there! I quicky turn around and go back and DH is sitting in his van with a very black look on his face. I am about to die laughing. He attaches the chain again and we make it home with no problems. Several weeks later I asked him what was wrong with the van. He very reluctantly told me it was out of gas. I can still pass that place on the road and just bust out laughing!I am really surprised that he told me he was out of gas. You know....Mr Effecient!!!