Barking dogs seldom bite. [ Proverb ]

An old dog can't alter his way of barking. [ Proverb ]

One barking dog sets all the street a-barking. [ Proverb ]

Kick a barking dog and he will bark the more. Never notice him, and he will shut up.

Truth is a good dog; but beware of barking too close to the heels of an error, lest you get your brains kicked out. [ Coleridge ]

Society is infected with rude, cynical, restless, and frivolous persons who prey upon the rest, and whom no public opinion concentrated into good manners, forms accepted by the sense of all, can reach; the contradictors and railers at public and private tables, who are like terriers, who conceive it the duty of a dog of honor to growl at any passer-by, and do the honors of the house by barking him out of sight. [ Emerson ]