stella, didnt' realise JRT can be so aggressive! Tot they are only active & playful. When u scold/ smack him, u gotta be very firm & stern (using low tone voice). U better use cane or slipper, not bare hands... easy kenna bitten! Can try putting him on lease even at home, easier to "control" him if he tries to attack u! Dog has to know tat u are the master, cannot bite & bully u!
If he bites, fling him away... the other time my neigbour's dog stayed over for a few days, suddenly crazy come & bite me! My initial reaction was quite to fling my arm away & the dog flew off the sofa. Initially, he was quite stunned, paralysed like tat... then i quickly sayang him, he was quite "consoled" & liked me very much after tat! Very weird hor?!