[Melissaandcrew]

Its the theory that the mornings first urine will be more concentrated from “holding it”..which of course only is accurate if he does hold it, lol. Take a meter stick of a paint stir stick, stick a clean container to it. I use put a piece of duct tape doubled over so both sides are sticky. When he lifts that leg, slide that sucker underneath. For really shy dogs who stop when you get too close, you need the longer stick : )