I realy wish I knew what sierras issue was but she will pee on the tile floor in the same place. I have moped, steam vac, and used pee cleaner in the area yet she still goes... at first it was at night after we would come home from work and then go out again after feeding and walking them. I figured it was cause she was mad at us after all she just held it for 8hrs but we would be gone maybe 2hrs at night and she would go. Now we ar coming home from work with a mess, I'm thinking the string of afternoon storms shakes her up and she goes on the floor. Now after our big hike they were wiped out and she peed befoer we left the house, were gone 4hrs and she went on the floor, last night at 3am she pooed on the bedroom floor, she always wakes me up if she has to go out, it was a huge pile as well, I figured she ate a lot with the hike and that why, let her out to go pee, then at 5am she woke me with her toenails on the floor as she was circling to go again so I took her out and she peed and pooed. Then she came and did her nose thing at 7am to wake me up to go out again! She peed and tried to poo but I could not see if anything came out. Not sure if this has to do with the hike or not. Her water intake has not changed and on most days we come home from work and not much has been drank so I'm not sure what is up, If I put a towel on the floor it helps to prevent her from going it just all the towels have been in the wash from cleaning up her messes what should we do or is it just from events that she is doing it? Thank god it tile floor but its on a slant so the pee runs in the grout lines and goes all over!