Creepiest/Most Disturbing Spongebob Episode

I've only seen images of said faces. What is the episode about?
 
Time Turner said:
I've only seen images of said faces. What is the episode about?
From what I've heard, Spongebob and Patrick keep on making (disturbing) faces, but they were only fooling around. Then Mr. Krabs gets annoyed and tells them that if they keep doing it, they'll get their face stuck in that position. Dunno what happens afterwards, but I heard the ending was gruesome.
 
Procrastination was pretty scary, but in a good way compared to recent, graphic Spongebob episodes
 
That episode where Spongebob turns into a snail by accidentally taking Gary's snail vaccine.

Maybe you didn't find it creepy, but I definitely did. Especially when Snail Spongebob starts haunting Squidward's house.
 
I've never seen Face Freeze either. I did see an image from a portion of it once, but I don't remember what exactly it looked like, so I'm fine.
 
I think that the most disturbing I have watch is "Sailor Mouth". It is about spongebob and patrick learning a swear word and they mistake it for a "sentence enhancer" but mr. krabs tells them not to say the word because it is a bad word. The funny part is that at the end, he ends up saying every single swear word in the book. However, the swear words are censored so you won't hear what they are saying.