I'm looking for the webcomic where if you keep scrolling down there's a jumpscare in which the guy looks at you.
It plays a sound effect to simulate his neck breaking as he turns his head.
>>52668
Possibly you're thinking of Bongchon Dong?
http://comic.naver.com/webtoon/detail.nhn?titleId=350217&no=31&weekday=tue
>>52676
Yup that's it.