We came back from a 13 day honeymoon to find out one of our cats (both
female, neutered) had repeated peed and pooped on a section of carpet in
a corner of the room over a course of a week or more. I need help with
two things:

1) How do I clean up? The urine soaked through the carpet padding clear
to the floor. Is there anyway to save the carpet? I used a whole bottle
of Nature's Miracle and it still smells horrible. How do I treat the
floor -- will I have to sand it?

2) Any idea what caused one of my cats to do this? I suspect it was my
15-month old Moxie. Last year, when we had only Sadie and took a two
week vacation, Sadie, we had no such unpleasant surprise when we got
home. Moxie, a playful, happy-appearing kitty, is a bit skittish around
strangers, and mostly hid in the closet the week of our wedding, when
there were lots of loud strangers in the house.

My downstairs neighbor fed Moxie and my 2 and a half year Sadie every
day and we had a cat sitter visit 6 times to play with them and give
them affection. Moxie still appears very playful. She's fond of playing
with string and lately has taken to sticking her paws in her drinking
water and spilling it to create big puddles all over the floor (I'm
assuming this is her having a good time, right?). Can anyone provide
insights and suggestions for nipping this behavior before it goes to seed?

Thanks for any help you can provide.

Dang