I am going to be going on a trip for 4 days, 3 nights but I'm concerned about leaving my kitty! I want to have someone come over to feed him, but I'm wondering how to work out his feeding. He eats 1 and a half cans of wet food per day, and we usually give it to him split up to 3 times a day. I'm worried about having someone only coming once a day and the food sitting out that long. I'm worried it will spoil. But I can't afford to have a cat sitter come more than once a day. What should I do?