What do i do?! My brother did, (read)?!?

Okay, my brother is, to put it cleanly, a moron. Our parents are out of town so they sent us to stay with out Aunt and Uncle. They live on a farm, and we city kids, we don't know squat about all this country stuff. Anyways, to the point. My aunts out with her friends and my uncles asleep. So me and my three brothers went outside to do whatever. We found a bike that belonged to our cousin who moved out. So my 14 year old brother grabbed it and started doing tricks, then my two other brothers found another bike and a scooter. So they're riding around and being idiots. (they're 13, 14, and 16) and then the 14 year old ran over the sheep food, or w/e it was, some niblet things. The bag ripped open and spilled. so then Daryn went to go see and left the gate open, and the sheeps walked away. We got most of them back, except one, we know where it is, but we can't get it in because it bucks. So they sent me on here for help, yeah ik, go wake up our uncle, no! Hes evil. how can we not scare the sheep? And what do we do about the ripped bag of food? thanks.