wrote:
Thanks all for the thoughts. I can see that it makes sense to take
Memphis to the vet, but Julie's been with the two cats for the past 4
hours and there's not been one incident.

Julie also recently discovered a couple more things: some dry food
upchuck on her bed (common Memphis behavior when she's acting out) and
that there's major remodeling going on in the apartment next door.
Presumably this was going on all day (and we believe that the urination
fit happened today), so it seems increasingly likely to me that it is
some sort of behavioral issue.

Still, we have an appointment to see the vet Friday AM. Again, thanks
to all for your insight -- I'll post updates as things develop.

I'm glad you have the vet appt. Even if the cat's acted out before,
it's always possible that there's some sort of medical condition that's
causing the present peeing problem. Reading your other post, finding a
lot of pee *everywhere* sounds like a definite red flag - that requires
a vet appt. - to me. Good luck.

Cathy