Because of the reputation cats have as "loners" and "self-sufficient" pets, many people assume that all will be OK if they fill a bowl full of food and leave their cats home alone for a few days when they head out of town. Unfortunately, that's rarely the case.
This is in large part because most cats actually aren't "loners" and "self-sufficient." And it's also because a lot can go wrong (and has gone wrong!) with unsupervised cats in as few as 24–48 hours, including: