I have a 4 year old Chihuahua (Penny) that can sit, stand, do a 360 and rollover. I also have a 5 mo old Terrier/Shih Tzu mix puppy (Peanut) that I've had for 2 weeks. He can sit, stay, down and come (sometimes lol). We are working on shake and stand. I havent click trained yet, just used treats. I want to take things to the next level. Every since I brought the puppy home, he has been terrorizing the Chihuahua. I want to ante up the training to redirect his energy to something more positive.