Most dog owners have the problem of their dogs peeing and pooping in all the wrong places, especially when visiting new places. I get the opposite problem. Loki just won't go.
At first I thought it was wonderful that my aunt & uncle had a very well-fenced backyard. We could leave Loki there and not worry about taking him out to poop or pee. That's the great benefit of having a yard! Unfortunately, Loki mostly refused to poop or pee in my aunt & uncle's backyard; he just held it in. Once, he claimed ownership of the land, he didn't want to mess it up. He didn't even want to pee in the front yard! He gladly peed in all of the neighbors' yards. Pooping was another story. He just held it in for over a day, until we came across an acceptable pooping spot far, far away.