You might think it’s cruel.
Well it’s not and, as a vegetarian, I’ve got the moral high ground. Needlessly slaughtering animals for a quick meal when there’s tasty veggie alternatives to eat instead is cruel. Making them ride greyhounds on the other hand brings joy to thousands and has no animal-friendly alternative. Watching a falafel ride a greyhound would be boring.
Also, it happened in the 1940′s. Lots of bad things happened in the 1940′s. The monkey got off lightly. Anyway, enjoy.