“Medieval armies didn’t use crossbows when attacking castles.”

My hand immediately shot up. “What are you talking about? Of course they did.”

My elderly history teacher replied “no, they didn’t.”

Me “Why do you think that?”

Her “because crossbows fire in a straight line so they would just shoot over the castle.”

I looked at my classmates, hoping they would see how insane this is. They were looking at me like I grew a second head.

Me “that’s not true. At all.”

Her, getting slightly annoyed, “how do you know?”

Me “well for one, I’ve fired a crossbow, I know how they work. For two, they had GRAVITY BACK THEN, the bolt comes back down!”

Her, and some of the class “ooooh!”

…

Her “well anyway…” And continues the lesson.

This was a college class.