This may be a bit long but I've not posted anything on here for months so apologies for that.
We have 2 GSD (Dino and Holly - 13 months) we have had since they were 6 weeks old. We already have 2 very old GSD (Leon & Bonny - 13 yrs) and one GSD (Oscar, 6 years).
Some of you may remember me posting issues at the beginning of 2010 as Oscar bit and killed a pup (Leah)we got with Dino, we replaced Leah with Holly. The majority of 2010 was fine but we had to segregate the pups (as we call them) from Oscar (but not the old dogs, they have been fine). Oscar always now has a muzzle on in the house when we are altogether which is every day as they have free roam of the house and sleep with us at night (as do all the other dogs). We have a massive 25' bedroom so don't worry!
House training was tricky with the pups and I suppose I got a bit lazy as they messed in the kitchen sometimes where they tended to live (yet another 21' square room) and they went out in the garden a lot.
Holly is fine, she is trained and usually doesn't mess in the house (typical female!). Dino, on the other hand has been more difficult. If we catch him often he does go out with the others and pees and poos but often went in the kitchen at night. We shut the door of the kitchen at night to try and stop the habit and now he poos on the upstairs landing.
We feed the dogs about 7pm after our meal and the Dino usually has to relieve himself about 2.30am (ish) which, as you can appreciate is difficult to catch. We are going to try and feed them all earlier (4pmish) but that may be problematic as they go for long runs each afternoon and we can't feed them before. We also can't feed the dogs in the morning either due to our working patterns.
Dino hasn't found a place for himself in the pack which may be also contributing to this problem. He sometimes pees if we shout at him for messing, and if Oscar growls at him through his muzzle, Dino pees sometimes!
Any ideas.