It might a global phenomenon bringing the world closer, but social networking giant Facebook can be a cruel mistress, as Evin Colvin found out.

According to popular blog valleywag.com, Colvin, an intern at the North American arm of Anglo Irish Bank, told his boss he wouldn’t make it in to work on 31 October. “Something came up at home and I had to go to New York this morning,” he explained. Unfortunately, a photo of him enjoying a beer at a Halloween party that very day – dressed in a fairy costume and wielding a wand – showed up on Facebook. Of course, all his co-workers saw it, shared it and plotted his humiliation.

Colvin’s boss got the last word when he replied to his employee, CCing the whole office. “Thanks for letting us know – hope everything is OK in New York,” he wrote. “Cool wand.”

Ever been busted on Facebook? Take it to the ITM forums!