I have a rescued Akita that I adopted in June of 2011. She is about 5 and she is fixed. She had never pottied in our house, EVER! She perfectly potty trained. Nothing has changed in our household but in the past month she has started peeing on my 3 year old son's bed. I have cleaned and cleaned the mattress. I make sure she is put out frequently. She just keeps peeing on his bed. I have looked online for ways to stop this, I just recently put an enzyme stuff on the bed, basically soaked it. Before that I can't even count the times we have shampooed the matress and tried to get it clean. But I did end up soaking the bed in the enzyme cleaner yesterday and this morning she was out for a good while. Less than an hour after she came in she peed and pooped on his bed. This is not something I can continue to do. I love her to death because she is so sweet and really just amazing but my husband and I have had it with this behavior. Any help is really really needed!!!! Thank you!