This will help you write good.
worst pain imaginable
"on accident" sounds so juvenile, it’s "by accident"
Ok but consider this: who cares
Actually, both are wrong. A preposition(on, by, in, near, etc.) must refer to a noun. Accident, in this case, is not a noun. Therefore, you SHOULD say “accidentally,” but I guess we all forgot how to speak English or something. I know no one cares. I’m just sayin…
The video Instalok debuted at PAX East 2014!