When I put too much pressure on my Lacy, he'll mark indoors. He'll never do it in the house...hotel...etc.
An example is I was granted permission to take him into Bass Pro Shop during the holidays to have him fitted for an orange vest. They were crowded and many people kept dipping down to pet him as we walked by. I watched him closely and he seemed to be handling it just fine. But as we walked into the elevator he tried to mark. I caught him and corrected him. We got off the elevator and walked to where the dog vests were. He tried to mark. Again I corrected.
When we were leaving the store he tried to mark at the check out. I know that it wasn't as if he had to go, I made sure he went before we entered the store. He wasn't 'smelling' for a place to go, he'd just lift his leg.
I was to blame for this one, because I put too much pressure on him - new place, very crowded, lots of 'touching', elevator, trying on vests.
Hondo Von Dopplet L Bauernhof "Hondo"- GSD
Lilie's Tug McGraw "Tug" - Golden Retriever
Maggie - Mini Dachshund (Rescue)
Lonestar Pivo - Texas Blue Lacy
Ashe - Barn Cat
Katie / APHA