Need a special food that will feed pets if you are going to be away for an extended period of time. Wouldn't want pets to starve, revolt, run away or whatever happens is food supply runs out.

@Hairyleggs

Your pets won't die or run away. What will happen if you don't feed them they'll become malnourished and you won't be able to battle or do things with them. You will have to feed them again to remove the malnourish debuff.