Well, Henry's been gone for weeks, and Louis has started spraying
again.

No other changes in the household, except I was out of town this
weekend. My wife caught him spraying our closet door upstairs (where
no one's peed before), and the closet downstairs (where he used to
pee).

I've gone through the checklist at http://tinyurl.com/7mjox and have
an appointment for him tomorrow at the vet to check out his urinary
tract. We've begun the conversion to wet food, and I'm going to get a
Feliway diffuser tonight.

However, I've got a theory about what might be going on. I think he
has anxiety about closed doors - perhaps acquired when we had Henry
here and he was sequestered behind closed doors.

If the closet door is open, he won't pee there. If we hide a door
(putting something in front of it) he won't pee on it. When my wife
caught him on Friday, she had just closed our closet door. I'm
guessing he's worried that there's a cat hiding behind that door, and
he needs to mark it. We're going to try supervising him with those
doors open. I dunno how we can break him of this neurosis, if in fact
that's what it is, but at least we can ameliorate it temporarily.

Whatever the reason it's a pain in the a.s. But there are lots of
success stories of people working this out, so I'm confident we can
bring him back to civilization. I just hope we don't have to sequester
him.

Thanks for any tips.

BLink