american bulldog advice needed please Have just taken on a 14 month old american bulldog yesterday as the previous owners needed him rehomed. They had found someone else to home bruce but he was not in any way suitable to look after him. He's a really nice dog, quite big and he does seems to have a placid temperament but is very wary of new people at the moment. we were looking to just have him till a nice home was found but if he stays this good then we may be able to have him permanently. We'd just like to know any tips people may have on this breed, if there any things we need to watch out for and how long until we see his true colours as he is a bit nervous still and he's being quite reserved. Any input would be greatly appreciated. thanks.