This week my parents and I are cat-sitting my brother's fiance's cat. They went away for the week so he could meet her parents for the first time. She has had the cat for 10 years. We have never had a pet before. The cat got here on Friday, August 25 and it was last seen about 3:30 A.M. this Monday morning August 28. Since Friday, the cat has generally hidden under a bed or sofa during the day, and has come out at night to eat and use the litter box. We had no problem locating where the cat...