Duke does the same thing, but it's worse because he is 2 years old and was neutered at 8 months old. He is "trained" to go on his pee wee pad but for whatever reason when I come home there is always urine on my couch.
He used to go on the rug but now I no longer have a rug for this reason
I have been buying the dollar store mattress covers, they are plastic, and cover my couch when I'm at work. This atleast prevented my couch from getting that horrible smell.
I'm lost too, and not sure what to do. I thought of gating him off while I'm away but the way the apartment is set up, I can't gate him off anywhere that's roommy enough for his food, bed and pee wee pad.
Good luck and I'm struggling with you...