Rhianna is completely pee pad trained, she was like that when we first got her, she will also go outside as well. Brody on the other hand . . .
He will go outside or on the pee pad after Rhianna, but there are several times where he'll come nonchalantly out of the back bedroom or bathroom like he did nothing . . .I have also seen him just randomly walk by the table leg and lift his leg . . .
I usually say HEY and he just looks at me like What, I didn't do anything . . .
Not sure why he likes to mark, Rhianna is spayed . . .but he does things out of habit I feel and we have tried correcting his issue, even put him in a belly band . . .he's really hopeless . . .
I'm thankful I don't have carpeting.
So, to me, I think it depends on the individual dog really.