| Small shy dog question
I'm thinking of taking on a chihuahua he's 2 yrs old and really shy. He's not house broke or leash trained. I was thinking of paper training him since I live in the sicks and the snow is up to my knees and we have no where to take him outside to potty.
I was wondering if anyone had experience in paper training an older dog and how long it took and how quickly did they pick up on it? | 
