Even though he's still young I've had some progress with Taz. I've been taking him to the bath tub to go potty every day as they like to go in the water. He soon stopped going potty in his cage waiting for me to take him to the tub. Now he has got to know he's supposed to go in the tub so I don't even need the water anymore! Have you ever noticed how they'll run at you if you wiggle your fingers or pat the ground? When he's hungry I pat the ground say “come here Taz” and he'll run right over anxiously! It's surprisingly easy and reliable. It's worked the last 10 or so times I've tried. I don't want to try it when he's not hungry yet because I want to be able to reward him with food, but I'm guessing he won't come if he's not hungry.