The term “Light hearted devil” refers to what?

In this pharse this term is used referring to someone who has unexpectedly came , In when being talk about , however period of 20th century, It was light hearted one..

Explanation:

Thank you..

answer; (c) on the left side; ; ; ; ; ; ; ; ; ; ; ; ; speech is localized on the left side of the brain;

answer; i believe that the correct answer is ( troxel v. granville);