the proverbial dog, in hindustani

Even when a dog sits down, he brushes the spot with his tail.  ( Said in recommendation of neatness.)

 If dogs could live on grass, every body could keep one.

Indulge the familiarity of a dog, and he will jump on to your head. (That is - Keep the mean in their own place.)

Go at the dog's pace and come back at the cat's.  (That is, post haste: both animals travel rapidly.)

Put a dog's tail into a straight pipe for twelve years, and it will still be as crooked as ever.  (Said of a man incorrigibly bad.)

My heart beats like a dog's.  (The sensation of a throbbing over the ribs is supposed to indicate the approach of an absent lover or friend.)

He has eaten dogs' brains.  (Said of a great talker.)

-- from 

A Dictionary of Hindustani Proverbs:

 

Including Many Marwari, Panjabi, Maggah, Bhojpuri and Tirhuti Proverbs, Sayings, Emblems, Aphorisms, Maxims and Similes, S. W. Fallon, (Benares and London, 1886), pp. 144-5