My 13wk old German Shepard puppy sometimes asks to go outside to pee (usually) but other times we will find long stretches of pee on the tile floor (thank God for tile) like he was just peeing as he walked around. He is crate trained and does not go to the bathroom in his crate and he is brought outside to pee quite often during the day & evening. He is rewarded for going to the bathroom outside every time. Why would he pee like this in the house? I know they have small bladders but this is crazy. Possible Infection? Lazy? Defiant?.....Help, LOL