Pee everywhere!

So I have been trying to get Jack to sit on the potty, not even go, just sit. That's been a nightmare. He has no interest. Could care less about treats. I still ask every time I change his diaper. 

Today I was taking his swim diaper off in my parents guest bedroom. I asked him if he had to go potty and he said no like usual. But then there he was standing there and pee was going everywhere! I was kind of dumb founded and didn't know what to do. I don't think he did either. I just kept saying "No!" I even tried to catch it with my hand! What was I thinking??? I guess we have made a step in the right direction. Now he has actually seen himself pee! LOL!