Crackerz I'm wondering if Catkin has a tendancy to a sluggish caecum & lower gut if the poops are like Thumpers big one. It's so simple - if they don't get it out at the bottom end they feel full & don't put any more in at the top end. Most vets use metaclopramide (maxolon) to get the gut going, but it's only effective at the top end - no effect on the lower gut. So you can get in the situation of food whizzing through the top end, but slowing down at the bottom end. The best drug for the bottom end is Zantac (Ranitidine). Some buns - like Thumper just have a bit of a slow lower gut anyway. It may be worth discussing with your vet.