Hi, tallulah - 2 people from my other MB have just recommended the hormone plug-in things - thought you might like to see what they said:
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1 May I recommend a quick visit to the vet to buy a de-stressing feline pheremone dispenser. These plug in to a standard electrical socket, and look just like one of those new-fangled room fresheners. They dispense a pheremone (odourless to humans) which calms and de-stresses cats, so that they are less likely to make anxiety puddles.
I had a similar problem - four cats and one suddenly started to mark in the house from stress (one of our other cats had started to bully her, after he had been attacked by a stray in our garden and soundly trounced - guess he just wanted to take it out on somebody). One plug in copes with the average sized living room, and lasts about a month. They are a bit pricey, but you can get cheaper refills the second time around. On our cats it was a complete success. Puddle cat stopped making puddles, bully cat stopped bullying. After a couple of months we stopped using it as an experiment, and lo and behold, no recurrence of problem. I'd guess that was long enough to break the habit.
I didn't gather whether your cats were free-roamers, or confined to the house. If the latter, I fear you may just have too many cats for the area they live in and may have to let a couple go. In my experience, having an odd number is never v successful - there's always an odd one out that gets picked on.
Good luck, and hope this may have helped.
2 Can I second this endorsement of the feline feromone dispenser. I have been astounded by the calming effect it has had and would never have believed it (still keep asking myself can it be some fluke or coincidence). It has done wonders for my elderly cat with heart, digestive and general stress problems and he is now back to his old chilled self.
(have asked vets if they could get one for me) >
I think they should make one for mums!
Good luck, anyway, tallulah.