What an interesting story! It kept me reading until the end to see why the poor cow had ended up there.

I'm not a professional writer, by any means, but your post over at the freewrite asked for opinions/critique. So here are my very non-professional opinions! What jumps out at me the most are format/minor grammar issues. For example:

“What happened!?”, I said demanding an answer. “You aren’t going to believe this!”,
“That was crazy!”, “Holy Crap!”, the guys were yelling over each other.

I had to re-read this because I wasn't sure who was speaking after the initial "What happened!?" part.

Overall, though, it was an interesting read. If you feel you might enjoy it, keep an eye on @mariannewest and participate in a freewrite. They're posted daily and are quite a lot of fun! It's also good practice. :-)