Ok, So I Can’t Figure Out My Dog’s Behavior.?

I have a 5 year old greyhound. I’ve had him for almost 3 years, and when we adopted him he was already house trained. He never had any problems with doing his business outside, i was actually surprised for how long he could hold it sometimes. Anyway the last three days, he’s been having problems. He has gone to the bathroom the last three days in a row in the house, and he wasn’t even home alone for the first time. The two other times we only left the house for about an hour. We even let him out shortly before we leave.
This is very out of character for him, so does anyone have an idea about why my dog is suddenly going to the bathroom in the house?

Ok, So I Can’t Figure Out My Dog’s Behavior.?

I have a 5 year old greyhound. I’ve had him for almost 3 years, and when we adopted him he was already house trained. He never had any problems with doing his business outside, i was actually surprised for how long he could hold it sometimes. Anyway the last three days, he’s been having problems. He has gone to the bathroom the last three days in a row in the house, and he wasn’t even home alone for the first time. The two other times we only left the house for about an hour. We even let him out shortly before we leave.
This is very out of character for him, so does anyone have an idea about why my dog is suddenly going to the bathroom in the house?

Training My Dog, Can’t Get Them To.?

So i’ve just started training my dogs. [Two beagles, one greyhound] I just kinda thought of a “routine” for my dogs. The beagles had the same, greyhounds was different.
I’m trying to get my beagles to;; sit pretty, sit , lie down.
they got it all covered except laying down. Whats a way i can get them to lay down? I just can’t get them to.
& The greyhound, she can’t just sit, she just lays down on her belly, then she lays down on her side, and goes into a roll over.
Greyhounds;; belly lay, side lay, roll over.
She does it fine.
Whats some other tricks i can teach them?
& How can i get my beagles to lay down?
I do use treats for praising.
Thanks