I recently did some flying out of CGN and OSL at night. I don't remember seeing wing walkers the whole week....in the states you almost always have them. One night at Cologne we were ready to leave but another plane was sort of in our way. The captain, rather impatiently I think, decided to go for it and we didn't have any wing walkers. Our right wing got a pretty good look at an Electra nose....much closer than what I'm used to and I guess I should have just told the captain to stop unless we had a wing walker. These things are usually blamed on the flight crew unless you are being pushed back.