--- title: College Student Trolls Friends With Seinfeld Door Sensor description: A clever college student is trolling his dorm with a door sensor that plays the Seinfeld theme when someone crosses the threshold. canonical: https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/ author: Cady Lang article:opinion: false article:content_tier: free article:published_time: 2017-10-12T15:16:43.000Z article:modified_time: 2026-04-13T07:47:57.659Z og:title: College Student Trolls Friends With Seinfeld Door Sensor og:description: Kids these days og:url: https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt2c528a60e3da9743/6988e1a97cdbac35c7d5a739/seinfeld-doorbell-college-dorm.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: Seinfeld og:type: article twitter:card: summary_large_image twitter:title: College Student Trolls Friends With Seinfeld Door Sensor twitter:description: Kids these days twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt2c528a60e3da9743/6988e1a97cdbac35c7d5a739/seinfeld-doorbell-college-dorm.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # This College Student Is Expertly Trolling His Friends With a Door That Plays the _Seinfeld_ Theme  by [Cady Lang](https://time.com/author/cady-lang/)  ## Cady Lang Oct 12, 2017 3:16 PM UTC  SEINFELD -- Season 9 -- Pictured: (l-r) Michael Richards as Cosmo Kramer, Jason Alexander as George Costanza, Julia Louis-Dreyfus as Elaine Benes, Jerry Seinfeld as Jerry Seinfeld (Photo by Andrew Eccles/NBC/NBCU Photo Bank via Getty Images) SEINFELD -- Season 9 -- Pictured: (l-r) Michael Richards as Cosmo Kramer, Jason Alexander as George Costanza, Julia Louis-Dreyfus as Elaine Benes, Jerry Seinfeld as Jerry Seinfeld (Photo by Andrew Eccles/NBC/NBCU Photo Bank via Getty Images)NBC—NBC via Getty Images  by [Cady Lang](https://time.com/author/cady-lang/)  ## Cady Lang Oct 12, 2017 3:16 PM UTC A clever student is putting his time to good use during his time at college, using his spare time and his major to expertly troll his peers with a door sensor that bewilderingly plays the [Seinfeld](http://time.com/4939327/jerry-before-seinfeld-netflix/) theme when someone crosses the threshold. According to [_Buzzfeed_](https://www.buzzfeed.com/tanyachen/seinfeld-irl?utm%5Fterm=.qtjMOqjm6&utm%5Fcontent=61579710&utm%5Fmedium=social&utm%5Fsource=twitter#.cunL19Jy5), Evan Genuise is an 18-year-old freshman at Northern Arizona University who’s studying electrical engineering and computer science; he went viral after sharing a video on his Twitter account of his friend’s memorable reaction to hearing the Seinfeld theme after entering the room. Genuise said that he used a YouTube tutorial by user Chloe Alix to created the motion sensor. Watch his hilarious prank below. > [](https://twitter.com/earth2evn/status/915337827562397696) ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/"},"headline":"This College Student Is Expertly Trolling His Friends With a Door That Plays the Seinfeld Theme","datePublished":"2017-10-12T15:16:43.000Z","dateModified":"2026-04-13T07:47:57.659Z","description":"Kids these days","url":"https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/","keywords":["Newsfeed","viral","Bizarre","Seinfeld"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt2c528a60e3da9743/6988e1a97cdbac35c7d5a739/seinfeld-doorbell-college-dorm.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Cady Lang","jobTitle":null,"url":"https://time.com/author/cady-lang/"}],"articleSection":"","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt2c528a60e3da9743/6988e1a97cdbac35c7d5a739/seinfeld-doorbell-college-dorm.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Seinfeld","caption":"Seinfeld","creditText":"NBC—NBC via Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/tag/time-section-newsfeed/","name":"Newsfeed"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/4979565/seinfeld-theme-song-door-sensor-dorm/","name":"This College Student Is Expertly Trolling His Friends With a Door That Plays the Seinfeld Theme"}}]}] ```