Help: how stop #DOG from #urinating in #closet?

I'm just too cute to be punished, right?

Help, please:  Gizmo is urinating in the closet.  AGAIN!!  When we are home, soon after a walk sometimes, more than occasionally while we are away.  Some say he needs to go to a vet and have his kidneys checked.

   Please:  What are your suggestions?

     One woman, who apparently knows about such things, said more walks.

     I am trying the positive, reward approach: whenever he urinates anywhere outside, I praise him and give him a treat (we stopped with the treats months ago, when he apparently got the right idea).  Other than that, if we go out, he goes in his cage – then there are zero “mistakes.”

    Any other suggestions?  Vet?  Reward?  Yelling and swearing?  Other punishment?  Spanking?  Saying, “NO” AND BAD DOG, in a very loud voice???

         Quote of the month: "on the internet, nobody knows you're a dog..."  @Drum_Phobia

Jeffry Tarigan