What is the origin of the idiom "scare someone shitless" and when to use it?

The exact origin of the idiom "scare someone shitless" is difficult to trace due to its colloquial and informal nature. It is an idiomatic expression that likely emerged through the creative use of language to convey a strong and vivid sense of fear or shock. The inclusion of the word "shitless" serves as an intensifier, emphasizing the profound impact of the scare. This expression is often used when discussing encounters with supernatural elements, such as ghosts or paranormal activities, as well as when describing intense moments in horror movies or thrill rides.