Bava Metzia 9: Don't Push a Donkey

How does one NOT acquire an animal, using formal acts of acquisition that are effective in other circumstances. With a focus on animals. Also, how the formal act of acquisition for some property can be combined with the one for other property (for example, acquiring utensils together with the acquisition of an animal). Plus, the acquisition by one's property of other property, like a courtyard or a boat.