Cat experts:

[CanuckAmok]

My older female cat has begun peeing and shitting on the bed. She's seven, and she's been doing it sporadically for about a year.

There's been lots of upset in the last year--losing my wife, moving twice, etc. The easiest way to stop the accidents on the bed has been to keep the bedroom door closed. She doesn't seem to 'go' anywhere else.

But now I live in a loft, and there's no way to keep her away from the bed. I've been covering the bet with a waterproof plastic tarp, but so far she's used it as a litterbox twice in the last week, the last incident being tonight, right in front of me.

She doesn't seem to want to use the litterbox anymore, and I don't know what to do--any ideas?

At present, I have her locked in the bathroom with the litterboxes. But I can't do that indefinitely.