Sometimes we make small mistakes in our writing that can be an area that our readers are well-versed in. Or an area that everyone is "versed" in and you have to face palm for not catching it yourself. What have you learned from comments on your work?
I've been schooled that:
An IV goes straight to the blood, not the stomach. So if you're character is on an empty stomach and an IV, they're probably not gonna be throwing up liquid, but dry gagging. No wondered I was a steady D in science...
Red velvet is chocolate cake with food coloring (I want to cry)...