Overheard in Iowa

A girl is sitting next to me on the bus talking to her friends.
Girl: Look at my hand
Friends: Oh my god. It looks awful.
Girl: Yeah the doctor said I should wrap it but I didn’t want to because I have class.
Friends: Oh ok.
Girl: Yeah so my boyfriend was looking at the stove after it set fire and he was like “Do you know there is a fire extinguisher under here?” I said I had no idea.
Friends: So how did the fire start?
Girl: We were just cooking vegetables and they caught on fire. We tried pouring water on the fire but it just spread and went EVERYWHERE. Now I have second degree burns covering my whole hand.
(I see the girl’s mangeled hand.)
Me: I am guessing you were using cooking oil and it started on fire and you tried to put it out with water.
Girl: Yeah. I guess you’re not supposed to do that. Who would have thought that was common knowledge!