Hello - our 5 month old black lab girl (roughly 17kg/37lbs) wets her crate 1-2 times per week. She does not pee in the house when out of her crate and lasts through 8hrs at night just fine, but when we leave for 1.5hrs-2hrs she sometimes pees in her bed. We haven't left her alone longer than that yet. I've been in the room with her a few times and haven't seen her move - rather she just lies there and then her whole flank is wet with urine. It's happened a few times when I've stepped out to get dressed/showered and when I've left the house, so I can't say for sure if she's gotten up then or not. We wash her blanket and clean her crate with pet deodorizer after each time. She does drink a LOT of water (1-2 liters a day) and we've taken her to the vet, but at first glance the vet can't find anything wrong...is this normal? How do we stop her peeing in the crate? It doesn't happen every day and I've never noticed her dribbling/leaking while walking. What are we doing wrong?