Then we have Sarah Palin, an underdog story that turned out to have an attack dog behind the curtain.
But he did open up to me about his most memorable sales, which includes a home with an attack dog.
Democratic strategist and CNN contributor Paul Begala, said Saturday morning that he doesn't think Biden should be a "snarling" attack dog, however.
If Clinton seems inclined not to play the attack dog, one reason may be that she doesn't believe it is a tactic that is needed.
Ms. EVELYN ZEBRO: I'd like him to, maybe if anything, without being an attack dog like John McCain, maybe be a little bit more aggressive.
Known for his plain-spoken approach and penchant for speaking from the cuff, Biden wasted little time taking to the traditional vice presidential candidate's role of political attack dog.
He hit the Sunday talk show circuit this weekend and tried out the attack dog role, criticizing Republican John McCain for his stance on Georgia, Iraq and national security.
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The first of several planned debates gave voters a foretaste of the federal-election campaign due later this year: Mr Abbott, the attack dog, against Mr Rudd, the unflappable, dry bureaucrat.
Like Nixon in 1952, Agnew served as the attack dog and allowed Nixon, who had remade himself from an avid Cold Warrior into a foreign policy expert, to maintain his new image.
Young and cocky, Brock had already made a name for himself as a right-wing attack dog, even before his Troopergate scoop, his book The Real Anita Hill, had skewered the feminist icon.
John Kerry's strategy in 2004, and Kerry loyalists repeatedly aired in public their view that Edwards would not play the traditional attack dog role with relish because he wanted to protect his future political interests.
When a political discussion thread becomes heated and he doesn't like the way it is going "right or left, " he says he privately messages one of his "attack dog" friends and suggests he or she join the discussion.
The irony in this case is that in his previous job as New York's attorney general, Spitzer was not only an attack dog against corruption, particularly on Wall Street, but he also prosecuted several prostitution rings.
They were thoroughly humiliated by Bush senior's attack dog, the late Lee Atwater, who used everything from the state of Boston harbour to the activities of Willie Horton, a murderer and rapist, to destroy Mr Dukakis.
After a third-place finish in Iowa stunned her campaign, the former president shifted from chief optimist to attack dog, with remarks that drew fire from many African-American leaders and alienated much of that community -- along with moderate swing voters.
Wittily, Robbins has appropriated for his own purposes the attack-dog campaign style of the right wing.
Mr Murdoch is rightly criticised for fostering an attack-dog populist culture in British journalism (and elsewhere).
Biden, known for his sharp wit, must now assume the traditional attack-dog role of the vice presidential candidate.
SAS-admiring Thatcherite attack-dog of yesteryear has evolved by careful degrees self-publicised on television, in print and through speeches at party conferences into the Conservatives' leading champion of personal tolerance and social inclusion.
In the past few weeks, Mr Gore has reverted to the attack-dog mode that served him so well in previous campaigns, such as the one in 1988 when he savaged Michael Dukakis (another north-eastern centre-left Democrat) for being soft on crime.
The council's dog warden, Bernadette Burns, said anyone facing attack from a dangerous dog "should stand still and do not run".
Mr Gwernan-Jones added that there was a "huge psychological impact" on owners following a guide dog attack.
Two women arrested on suspicion of manslaughter after a 79-year-old man was killed in an attack by a dog in Liverpool, have been bailed.
The death of a 79-year-old man in a dog attack in Liverpool has left his family "heartbroken", his brother has said in a family tribute.
"While we welcome the publication of draft clauses to extend the law to private property - which is a longstanding loophole leaving thousands of dog attack victims without recourse in law - there is still no timetable for the implementation of this change, " said CWU general secretary Billy Hayes.
Mr Barr said he was worried that the dog could attack someone else.
Unclear is whether the dog suffered the attack before or after Michaele journeyed off with her Journey man.
Sean and Deirdre Doherty, their son Ben and a family friend escaped with only minor injuries after an horrific attack by a pitbull-type dog in Randalstown Forest Park.
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So doctors gave him a specially trained dog that can sense when an attack was coming on.
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