Well I guess I must get technical with you since common sense is a foreign term to you.....
1. A pasture ornament (though not a true dictionary term I don't think) is generally an animal that has no use and is kept on a person's property merely for the enjoyment of looking out and seeing it standing there in the pasture and hence making the pasture more appealing.

Halter horses, hunter under saddle horses, western pleasure horses, driving horses, etc. do actually have a function (though you obviously don't like that fact) so therefor do not qualify as "pasture ornaments".

2. A clumsy hippopotamus is an animal far from the equine species and therefor needs no another discription.

As to proving your statement is wrong..............I don't really think I even need to waste my time by typing anything else in this post.


Are you kidding me?

Other than being literal on the words' meaning, can you please prove wrong the point of the statement? or did you run out of arguments already?