Horses Aren't That Stupid.

https://us.cnn.com/2022/09/19/world/gun-carriage-queen-elizabeth-ii-funeral-intl-gbr/index.html

And like most things involving European Monarchies. It's got an unpleasant Colonial history.

https://en.wikipedia.org/wiki/Second_Boer_War

https://www.reuters.com/world/africa/after-south-african-dam-collapse-mine-waste-be-pumped-into-historical-pit-2022-09-15/