Residents of Northern California need to practice their romance responsibly, a utility company said on Wednesday. Many people celebrate their respective loves with the release of metallic helium-filled balloons, a practice that can lead to power outages and serious injuries. “Pacific Gas and Electric Company urges customers to securely tie a weight to all metallic balloons containing helium to prevent them from floating away,” the company said in a press release. “Metallic balloons that contact overhead power lines can disrupt electric service to an entire neighborhood, cause significant property damage, and potentially result in serious personal injuries.” Last year, metallic …