I have a number of friends who insist that horse or cow would become trapped if they climbed a set of stairs and did not have an elevator to ride down in. They always cite an example that just smacks of being an urban legend, that as a school prank at their friends high school someone under cover of night put a horse/cow on the second floor for the school staff to have to deal the next day. Then invariably the animal would have to be put down because they are unable to go down stairs.
Is there any evidence to suggest such a prank happened and resulted in this?
I’ve seen horses navigate stairs, like the marble stairs in front of public buildings. I don’t think a horse would become trapped by any set of stairs.