"Some historians suspect the punishment wasn’t actually carried out in reality. After all, getting a dog and an ape into the same sack would not be an easy task. Many argue it was only used as a threat designed as a deterrent to terrify anyone who even thought of killing their parents. Others believe it involved tying the accused up in a leather sack but perhaps didn’t involve the addition of other beasts."
January 1, 1970
https://en.wikiquote.org/wiki/Poena_cullei