Mark looks at all the pictures on the vials. So many animals. It had to be some kind of joke. No way would some liquid can change someone into an animal.
Mark saw one that made him laugh a little. He picked up a vial with a picture of a cow on it. "A cow? Oh man that is just silly. I just have to try it out." He uncorks the vial and the smell of warm fresh milk fills his nose.
He shrugged and gulped it all down. Or at least as much as he could. "MMMmmm. Taste like a milkshake." Right then he remembered about his chores that he had to do in the barn.
Mark quickly corked the vial, but it back into the box and ran outside to the barn. Only to feel a little pressure in his gut.