Barney

Barney Calhoun is one of them security guards at the combine citadel Black Mesa. He is a huge, drunken, crazy Irishman, who has a sexual feeling hate for Headcrabs and annoys the player with his false beer promises throughout the Half Life series, except in Episode 2 where he ran out of the game like a coward.
==Half Life 1==
He was one of the identical se-queer-ity faggots guards working at black drug experiment project Black Mesa who says to catch him later and he will buy Gordon Freeman a beer. Gordon also flipped Barney at the start of the game.
==Half Life 2==
Calhoun was seen once again in a Civil Protection suit, and once again promising to buy Gordon Freeman some crack beer. He soon fights with you WAY later in the game, doing absolute shit before ditching you and telling you to tell Wallace Breen to fuck off, leaving you beerless, AGAIN...
==Half Life 2: Episode 1==
Barney appears in the final level forcing you to help some Noobs who can't fight to get to the train. He then gets on the train packed with Noobs and runs off to some unknown land, LEAVING YOU BEERLESS, MAYBE FOR THE WHOLE GODDAMN GAME!!!
==Half Life 2: Episode 2==
Barney escaped the huge boom in City 17, and went somewhere with Gordon Freeman's beer, did some stuff, probably died, and who knows what...
==Half Life 2: Episode 3==
It is unknown what sorts of things he is doing, 'cause the game isn't out yet.