It's a pretty common standard used in a lot of places. https://en.wikipedia.org/wiki/Reasonable_person https://en.wikipedia.org/wiki/Reasonable_person And oth

It's a pretty common standard used in a lot of places. https://en.wikipedia.org/wiki/Reasonable_person https://en.wikipedia.org/wiki/Reasonable_person And other similar "vague" concepts arise elsewhere in the law, like someone "skilled in the art". https://en.wikipedia.org/wiki/Person_having_ordinary_skill_in_the_art https://en.wikipedia.org/wiki/Person_having_ordinary_skill_i...