Please tell me that there was at least one as*hole Muggleborn kid who refused to call teachers professor
"Mr. Snape?"
"It's professor Snape"
"Do you have a doctorate degree?"
"... no"
"Okay then Mr. Snape❞
However when it came to Lupin...
"But squad, do you think Lupin's a professor"
"Did you see his elbow patches? No question"
