"A New Man" is the 12th episode of season 4 of the television show Buffy the Vampire Slayer.
Giles, feeling left out, goes out for drinks with Ethan Rayne. He wakes up in the morning as a Fyarl demon, and hires Spike to help him, as Spike is the only one who speaks Fyarl. The Initiative tries to hunt him down, with Buffy's help. Eventually, Buffy realizes that it is Giles, and Ethan is forced to undo his curse and then is taken into custody by the Initiative.
Quotes and trivia
Giles in the scene where he is a Fyarl Demon running away from Xander's House: "Bloody Humans!"
Giles: "You help me and I don't kill you. Spike: "Oh, tremendously convincing. Try it again without the stutter".
Giles: "If you can't find third gear, don't try for third gear". Spike "I'm doing my best, I don't know if i'm driving this thing or wearing it".
Riley uses a cell phone -- the first time a cell phone has been used in the series. A New Man on Wikipedia