Hah.... This only makes me want a pony as a college roommate even more.
)It would be sentient as well as cute. )It'd be intelligent, so I can talk to it. )It'd technically be an animal, so I could pet it and give belly rubs and it probably wouldn't mind. )It'd be smaller than me, so I could pick it up. )It'd essentially be a roommate and a pet combined. "The sum of the square roots of the two legs of a right triangle is equal to the square of the hypotenuse. Uh, hey... could you...scratch behind my ear for a sec? Right here? Ohhh yeahhh..."
But the few problems may be:
)Would it... shed everywhere? "Roger, there's beige fur all over the couch." "...Uh...I..." )Would it be comfortable with me eating MEAT in front of it? Well, the animals here on Earth are not sentient (they're running purely off of survival instinct) so I bet it'd forgive me. )It is not the size of a normal horse; it is smaller than a human, so it may not be able to defend itself if it were attacked. I guess I'd have to protect it.