I’m not sure there is any reason, exactly, but really …
(I was going to take advantage of an empty house to write a long blog post this afternoon, but it was sunny, so I went for a walk and came across this friendly horse along the Brampton Valley Way. People were queuing up to take his picture, so he may find himself going viral anytime soon …)
The Crimson Rambler 
I’ve eatern horse and jolly delicious it was too. I also had some horse pate from a butcher in Calais and it had a pleasantly meaty texture that is lacking in the more livery pates.
I will refrain, however, from eating the horse in your picture as I fear he may be past his sell by date…
Well, aren’t we all? (Me, obviously – not you).