Cannibalism. The owner's an idiot for thinking he can get back safe and sound empty handed. He should've hired a homestay or house sitter to watch over things. If he had the money to go on vacation, he should've thought of this aspect too (maintenance of the dwelling while away and everything within it, including kids, pets etc).
hullo are we forgetting that dogs aren't human! no matter how much we call them man's best friend etc! @akki yeah lol forgot this is indonesia