Wondering if any of the dog experts might be able to help as I've never had a dog. I will try to make this short I started dating a girl and she started bringing her dog (Toy Fox Terrier) over. At first he loved my big yard (maybe 80' x 40'). But after a month of so, he started sneaking out of the fence (either to the front yard or neighbors) to go to the bathroom. So I fixed the fence so he couldnt get out. We thought that maybe he just didnt like constantlly pooping in "his area". Slowly he stopped even walking in the grass, first it was he would do his business and come back, now when i let him in the back, he just sits on the patio until I let him back in. And he found a spot in the house that he likes to go to the bathroom repeatedly, he's never had a problem being house broken at my girlfriend's apt. So now I have to take him on at least 2 walks a day so he doesnt go inside the house. Today I put on his leash and took him in the backyard and refused to walk in the grass. I picked him up and put him in the middle of the yard and he just stood there until I dragged him enough and he ran back to the patio. He gets TONS of attention, goes to the park at least twice a week, etc. Any thoughts on why he's scared of the yard now. The only thing I can think of is that he's come down with fleas bad so maybe there is an infestation back there?