My parents' older cat is 15, and for the past year or so he's had problems controlling his bowel. He appears to often just go where he's sitting. It seems to freak him out, he'll run away kind of panicky when it happens, so we don't think it's a concious decision. My dad seems to think that it's just because of his age and there's nothing to be done about it, but I think maybe it's a medical problem, something that can actually be helped. Has anyone experienced something similar? Is loss of bowel control common in older cats?