It must be fairly dull being a cow. Just mooch around, chew some grass, wander around a bit more.
So you can forgive this herd in Texas for being ever-so-slightly perturbed by the side of an enormous, laterally-moving rocket taking off, and then landing perfectly.
The test flight for the SpaceX 'Grasshopper' rocket took place last month, but the company has just released this new video which shows the incredible maneuverability of the machine, as well as the reaction of the nearby cows, who couldn't wait to get moo-ving.
Grasshopper is the first generation of test rocket for SpaceX's Falcon 9 reusable launch system and this particular test flew to an altitude of 250m, with 100m lateral movement, before landing back down again. Astonishing.