Went for... went to

Hi! Iwant to ask you!
The dog went for the postman and bit his leg. ( I sow this sentence in a book) Why here “FOR” (went for) ? Why no" To"?
Thank you


The dog ATTACKED the postman.


Hi Alan! They say that Englishmen and Englishwomen like very much dogs and cats. Is it true? Maybe it is only gossip. Tell us, please. Interesting to know the way of life of English people.

Thank you for your view of point