Some of you may of seen this before - it's from an interview with Jackson Bolt (Actor/Stuntman):

"Having worked on a variety of the show's aspects, Jackson has quite a few memorable moments. One humorous tale that immediately came to his mind involved Charisma Carpenter. "We were working when they had Charisma in that I Dream of Genie outfit running around out there. What people don't know is the night that they did the scene where the Groosalugg and Angel are fighting and she runs in to break it up, it was snowing, and she was freezing her butt off. She started yelling across the compound at David Greenwalt, 'David you know it's f***ing snowing out here!'" He continued between laughs, "It was just a shock to hear that come out of her mouth because she has this character image on the show of this angel, and then to hear that come over my shoulder, it was just kind of a shock!" "

http://www.cityofangel.com/behindTheScenes/bts2/boltSpot2.html