I've got a 18 week old Weimaraner who seems to be regressing. Over the last two weeks he is jumping up and more more, he's had numerous accidents in the house (had a fortnight or so with none, we take him out and praise him exuberantly when he goes outside, ignore it when he goes indoors), his recall is getting worse...it's making me a bit worried. I know weims are hectic dogs and take a lot of training, that's fine, that is what we signed up for (in fact he's just finished his first training course). I just don't understand why his behaviour seems to be going backwards? Its like he's turning into a teenager! Help!