so the foster dog's turning out to be more a puppy than I expected. He's peeing everywhere - my place is all wood or tile so he doesn't seem to understand that it's still inside (at least he poops outside). He can't sleep through the night, either, and wakes me up around 4am and then wants to play and won't settle down.

He's also starting to exhibit separation anxiety where he'll whine and bark when he's crated.

What's the best way to help him with his separation anxiety? I live in a condo so I can't really have him barking all day while I'm away. I do not make an event out of leaving. I also ignore him when I come home so I don't make a big deal of my coming back. I've tried to tire him out with a walk but he still has puppy exuberance when we get back.

And any help you can give with house training his peeing would be appreciated, too.