Ok so hopefully someone can give me some advice on this!  My pit eats 2x a day once in the morning and once at night and he gets water 4 times a day 1 with breakfast 2 durring the day and 1 with dinner!  I let him out every 2 to 3 hours and he never goes potty in his cage!  Now with that said I will take him outside to potty and he will pee but not poop.  I walk him around for a about 45 mins or so then when we come back inside the frist thing he does is poop on the floor!  Why is he doing this and how can I get him to stop??