Literally carrying us on their backs

I tried, of course.

"Horse meat is commonly eaten in many countries in Europe and Asia. It is not a generally available food in some English-speaking countries such as the United Kingdom, South Africa, Australia, the United States and English Canada."

https://en.m.wikipedia.org/wiki/Horse_meat

He ate glue as a child.

Edit: No jokes about horses becoming glue, noted lol.