I have a 10 year old nutered male cat and and he was great with the litter box until about 6 years ago he started pooping outside the box now at first we thought he was pissed at us for bring another cat in the house but he didnt start doing this until at least a year after we brought in the other cat who is a spayed female and they always and still so play and get along now my male cat doing the bad deed is 20 pounds and large for a cat vet has checked him out completely and says hes fine and hes very social with us doesnt seem un happy and we have 4 litter boxs in the house in different areas all privet and out of human sight and clean now ive tolerated this for 6 years because iys just poop and just ouside the box never any where else until just a couple weeks a go whenn he peed just out side the box and is now pooping farther away from the box i love this guy but if we dont find whats wroonog hes going to be put down iam at the end of my rope anyone who has any idea what this could be help me and pete before its to late