He sounded like a cow for a second

That's what they do to get milk from their mom, you idiot!

Pretty predictable when he's dilly-dallying with their food for a video

Bottle-fed calves are notoriously merciless. They're also affectionately called 'bunting calves,' 'bottle babies,' or 'bottle bunters.' A calf's natural instinct is to butt its mother's udder with its head to get the milk flowing.

Isn't that how they stimulate the udder? So it's not an attack, just a normal reflex, right?