[Jordie's Mom]

Hi, I am new to the forum and the new mother of a 3 month old Yorkie/Maltese. Jordie will not go potty outside. I take him out constantly and stand outside for 10 to 15 minutes, he seems to view the outside as a mud, rock, and stick buffet! As soon as we come into the house he will potty right by the back door. I have put paper down, to save on mess, and have even tried taking the paper outside. Help please!