Samson is 14 weeks today. And I have a problem. We have set up a big sand box for him (8'x8') for him to go poo and pee in. He is still under crate training. So ill take him out of his crate and walk him to his box (off leash) and he will goo poo and pee. After that I let him play for 15 min and he will poo again sometime even twice. I don’t understand why he does that. We have been doing this box thing for over a month and he still goes poo in other places. I would like to be able to leave him outside now and trust him that he will go to the bathroom in his box. But it’s just not working he only uses it when I walk with him over there. I hope someone can help.