I just adopted a 7 year old Bengal from the original owner. Now in a new home, with a new owner, she has been reclusive for the past 4 days hiding under the bed or behind the couch. She comes out at night when I am sleeping to eat, use the litter box, explore and play. I have cornered her a few times, put her in my lap and petted her till she has purred to show her that everything is ok. How long should I wait for her to come out and play with me before I should become worried? What can I do to make her more unafraid?