Retail Vampire
For those who work in retail during the holiday season it's the phenomenon of going into work in the dark and going home in the dark-- thus eliminating any sun exposure for about 3 months.
co worker: "You gonna skip out early today boss?"
boss: "Nah, you know us retail vampires-- all day every day!"
boss: "Nah, you know us retail vampires-- all day every day!"