I get that dogs like to mark when they are in new areas or on places where other dogs have marked, so I don't get too concerned about the fact that Shayleigh pees a lot while on walks or at the dog park. However, while taking walks or when at the dog park it seems like Shayleigh poops every two minutes. I know it isn't because she HAS to go, because the more times she goes the runnier it gets. Is it normal for a dog to go that often? Is it just another way of marking?