Yes! I am like the police when it comes to marking
I watch him like a hawk. If he is going to try it will be in the first 5 minutes. So I literally follow him around for 5 minutes! Then if I am unsure, I will put his bad boy pants on. They are always dry when i take them off though.
My dog sitter takes them to her house once in awhile. I tell her repeatedly to watch him and correct him and he will never try again. She doesn't listen to me and he has a field day at her house! She say, Scudder peed through his belly band again.....ugh.
My sister has a beautiful home. My guys are their pretty often. Years ago when she first moved in, Fred tried to mark her custom curtains! I caught him before he did it and my guys have never tried to mark in her house since! They know which houses are fair game. These guys are not dumb!
I LOVE the "bad boy pants"!
Actually, when you think of it from their perspective, how are they supposed to know that ALL houses are off-limits?... Especially if they can smell that other dogs have peed and/or marked there too! I think it takes years of saying, "not here, and not here, and not here..." until they have really generalized this.
Kodi had NEVER marked in someone else's house until I took him back to visit the King's. He dutifully used one of their (numerous) litter boxes to pee when he was indoors and needed to, but at one point, with us all standing there, he marked on a dog bed on the floor. Pam told me that several other visiting dogs had done the same thing. (it had been thoroughly washed in between, but dog noses are VERY good!) Because we caught him in the act, and I made my displeasure IMMEDIATELY known, he didn't try it again.
I think that one thing many pet owners don't understand about dog brains (and I only learned from working with our trainers) is that dogs are notoriously poor at generalizing information. To get back to raising puppies, that's why many people know their puppy is totally reliable in the kitchen and family room, decide they are "fully trained", so give them unsupervised access to the whole house, and then are shocked when the pup, who, according to them, KNOWS where to go, "deliberately" pees and poops various other places in the house.