People says cats aren't spiteful, but I think my cat is pissed off because I won't let her outside. She bolted out a few weeks ago and had a heyday, but I really don't want her outside. If we are outside, she will pee at the front and back doors. Her litter is clean...I am a stay at home and I clean it probably 2-3 times a day. I have 3 cats and 4 litter boxes. This is beginning to really cause a problem. I am half tempted to just put her outside and leave her there.