Alright, I am hoping this doesn't sound like a stupid question..but my Great Dane boy does not lift his leg to pee... he squats (kind of) in no particular place.. we will just be walking and he will stop and start to pee. Every single dog I have owned or have seen, lifts their leg and goes to a tree or a bush, not just right in front of them. Is this just because of their size? I just thought it was really strange.