So I've apparently forgotten some things about housebreaking puppies, and I've got a question about my sisters puppy Dixey (she's 3 months old). Sometimes when they take Dixey out, she will pee and poop. And not 10 minutes later she's peed in the house again. Is this a not leaving her outside long enough to empty herself, or something like a UTI issue? I'm puppysitting her tonight, so I'm going to try a few things/let her out more often. She's fine in her crate holding it for 2-3 hours, and I think only wakes up once during the night to be let out. TIA!