People popping pus out of enormous zits and sebaceous cysts!
I came across it by accident and saw one, then another and watched quite a few. It was strangely engrossing and rather satisfying to see these people spurting out all that gunk, and believe me there were some with an enormous amount that just kept on coming.
Just search for "World's Biggest Zit" in You Tube and be amazed how many are on video, some are dealt with by a doctor, some by a partner. It will draw you in if you start watching them, as they draw the pus out.
WARNING: Best not be eating a cream cheese or any soft cheese sandwich or on crackers while viewing!