hi guys ive just got my first pat and its my first terrier and iam wondering how to go about traning him for rats and rabbits is it just buit in him or do i have to train it into him i ve had spaniels and still have 2 and there trained to the whistle and gun as i do alot of shotgun work and softed mouthed i no that terriers r the oppeset and i want him 2 rag dolll rats lol and rabbits hes only 4 and a half month old the now got him from a game keeper on the scottish borders any help appreciated chheers lee.