Calls for 'killer' dog breed to be banned after two maulings in one day A pet American Staffordshire terrier has been seized by council officers after it attacked a dog and one of its owners, who was trying to intervene, in Sydney's west yesterday. The mauling, which happened in Pemuluuy about 12pm, left the pet groodle with life-threatening internal injuries, owner Damien Aggio told nine.com.au. Mr Aggio said his wife, Tina, was also hurt in the attack, suffering injuries to her left hand and arms. READ MORE: Dog owner Tina Aggio was also injured in the attack.(Supplied)