Our 14 week old lab is ace. pretty much house-trained instantly, has learnt all the basic commands, plus a couple of others, doesn;t chew the kitchen units (the only thing he gets unsupervised access to) and doesn't jump up at us, getting better about strangers (who I wish would bloody well stop smiling and saying "oh it's ok, I don;t mind" when I tell him to get down and ask them not to stroke him if he jumps up,) but people keep saying stuff hinting that he well get much more of a handful as he gets older...is this right? I'm not worried, just interested.