help! my husband and i have a huge problem with my oldest cat, mookie, who i found as a walkup a year ago. she is EXTREMELY jealous of both our dog, bud, who has been with us for 4 years, and our newest cat, littlecat, who wandered up about 3 months ago. she is prone to violent outbreaks when she sees us paying attention to another pet, where she scratches and bites us. to get back at bud, she eats his food, and sometimes she scratches him. to get back at littlecat, she hisses and lowers her ears with no violence. however, when we are not looking she pees on my pillow, my husband's pillow, and the floor. she even pooped where she sleeps (on my down comforter)! we have not gotten any farther than having littlecat come in on short supervised visits (littlecat stays in the pantry). both littlecat and bud are nice to mookie, but she has serious issues with them (especially littlecat). i have tried introducing the cats slowly, to no avail. we are giving mookie lots of extra attention, and taking her or littlecat to the shelter is not an option. can i do anything about her security problems, and stop her from marking her territory? by the way, she is not marking places where she's marked before, it's always a new spot. any help would be greatly appreciated!