I was noticing that most items disappear after not being locked down in roughly two hours. I was wondering if there are certain items that prolong the time of two hours or if there are certain items that disappear earlier than two hours. I was wondering what items don't disappear. I know one item , the black cat statuette, is very annoying and does not disappear lol. If I were to put a black cat in a box and throw it on the ground for a day would it go poof? Thanks for any info, I was just very curious.