I just got an 8-week old siamese kitten on Sunday. I've been keeping her in the bathroom at night & while I am at work until I know that she is used to using her new litter box. The first 2 days she pooped in the bathtub, so I called a friend for advice and she said to put the litter box in the bathtub where she kept going. TA DA!! It worked (the first time) but last night she did go again the litter box but twice next to it, in the bathtub as well. My parents are coming to visit from out of town this weekend...What can I do to get her to stop?