I agree. Cats are pretty resilient. I have come home to find a stack of dishes tossed to the ground and both the fridge and freezer wide open. They do revenge very well. LOL! But all and all, they manage. I think they also understand and know you have to go to be with your mom and you didn't just go on holiday and abandon him. It's all good. Concentrate on your family and your furfamily will be fine.