jack russell , now there's a memory, i had one clamped to my ankle when i called for a school mate when i was 15 years old , bloody thing wouldn't let go and i couldn't kick it's head in or strangle it while it's owner my mates mum was saying -- now come here you naughty boy come back inside -- let go come here. after it had ripped the back of my leg to pieces and holed my jeans it let go and i was able to limp away. my mate wasn't in and i got no response from it's owner as i went down the drive.