Fullerton Police Department employees, about 20 strong, recently spent their day off doing anything but relaxing. The group, which included officers, reservists, cadets, a Retired Senior Volunteer (RSVP) and a jailer, turned screwdrivers and swung pick-axes. They hung drywall and put down flooring. They measured and vacuumed. The volunteer effort, which took place Friday, Dec. 2, went toward a Habitat for Humanity project to build an energy-efficient home for a low-income military veteran. Habitat for Humanity is a nonprofit that builds homes that then are typically purchased and lived in by low-income families. The mortgage is discounted based on the…