Now I know what you're thinking, but hear me out on this. The 1987 cult comedy "Summer School" is definitely not a horror movie whatsoever. But it's one of my 'must watch' summer favorites and it features one of my all time favorite horror scenes in a non horror movie. For those unfamiliar with the movie, it's about a high school gym teacher (Mark Harmon) who has to cancel his summer plans to teach a summer school English course for a bunch of goof off underachievers. Horror fans will recognize Shawnee Smith as pregnant teen Rhonda.