all terrier breeds are tough , scrappy, feisty dogs with high pain threshold - so they don't give up. I've seen jack russell terriers being used for vermin removal , nest of raccoons in barns and come aways with scratches and gashes and still never ran out of steam or game .
even in the show ring judges look for attitude from terriers , that is part of their breed character .
Patterdales - intimidating ! I had an American Rat Terrier for a short period of time .
Talk about instinct . Confronted by a large combative rat , the dog who was no more than 3 months old , knew exactly what to do , and could dodge the rats attacks, great co-ordination and she just kept at it till she had finished the job. The dog , not the rat . I had to re-home this dog after a year . Although she was a wiggle butt with ALL people - fantastic that way - her complete lack of any semblance of trainability , was wearing on my last nerve , plus I had to be extremely careful to be sure that she and my GSD's did not meet , when my guys were out running in the field . They wouldn't start something -- but the Rat Terrier would have . So she went to her new home . A mature adult couple with no kids --- and she is still alive at 17 years , joining them in their retirement in British Columbia , a little porky from being spoiled , but happy . Feisty .