My boyfriend and I like to go camping during the summer, and I'm wondering how long you guys recommend leaving our two cats alone. We can give them enough food & water, I just don't know about them getting upset or destroying our apartment. We've left them alone for just over a day before, and it went okay. The only problem I can think of is that they try to spill all their water, and play in it. So, if it runs out they'll go thirsty.