Could an animal do something completely differing from their natural behavior for no apparent reason

I know this is a grim example but imagine a human just goes and murders someone they know for no reason maybe they are psychotic and want thrill or something could an animal do this ? Like could a dog just turn on their owner and try to kill them for no reason even if the owner has fostered them and loved them since birth and they were fully taken care of ? or could a cat just randomly eat its kittens for no reason ? Are animals able to do bad things for essentially no reason (as in no primal instinct or thing that would occur normally)