QUITO (Reuters) -A shoot-out erupted on Saturday near a restaurant where Ecuadorean presidential candidate Otto Sonnenholzner was eating with his family, police and the candidate said, though the violence was not directed at him. Ecuadoreans head to the polls on Sunday to elect a new president and legislature after a campaign clouded by the assassination of anti-corruption candidate Fernando Villavicencio 10 days ago. "We just suffered a shoot-out in front of the place where I was breakfasting w