The big reason I do not have any cats. This is literally the 10th story I have read or heard of where a cat has done something potentially detrimental to someones herps. The worse I ever heard was a buddy of mine never lets his cat in the reptile room. Well one day it happened and it was very detrimental to his collection. The cat pulled three containers open and killed a good chunk of his knobtail collection. I just about stroked out when he called me with the news. Don't get me wrong cats have there plus's but for me I am too paranoid about my critters to take a chance. I really do not know what I would do if a cat decimated one of my very expensive snakes or geckos. As for the incubator 6 to 8 hours should not be a problem since your media probably kept the temps for a bit. I would suggest putting 2 to 5 gallons of water in some sort of container in the bottom of your incubator. This will give you a little thermal mass, and in return if your little feline does it again the water will help keep the temps up for a little longer period compared to just a bare incubator.