Yes, all the time

yea i would be walking or in class... and i think of some stupid post and laugh silently like an idiot

Oh my God, YES.

I control my laughter when I'm on ATRL in public, but when I'm alone in my room, I'm HOWLING all day long. This site is a mess.

Yes I was at the dollar store buying a new butt pad and I was dying laughing at one of the threads.

Yes. Ugh it's embarrassing when I can't hold it in during class

Specifically this post caught me off-guard once