Looks that way. My Dad had a pet monkey in the 50’s and he said it was the worst two weeks of his life....
When I was in my teens a local pet shop had a cool looking monkey for sale.I begged my parents to let me have him/her but they *refused*.Probably a wise decision on their part given what I've since learned about a monkey's inclination to combine toileting with expressions of displeasure.
I kid you not, this exact ad used to be in all the comic books and "adventure" magazines like "Argosy."