This is probably just coincidence so don't take me too seriously but here's what I've noticed:
The professors of my biology/chem courses: "Hey buddy, don't be afraid to ask questions we've made sure to try and make things easy to understand. Here are some extra resourses for you if you're having trouble. We've structured the marking so that you have lots of opportunities to catch up if you have a bad week etc. Good luck! So proud of you all! 🥰"
The professors of anything to do with math or tech:
"LISTEN HERE YOU LAZY PEICES OF SHIT. IF YOU DON'T ALREADY KNOW EVERYTHING I'M SUPPOSED TO BE TEACHING IN CLASS THEN FUCK YOU. WE HAVE ONE TEST AND IF YOU FAIL THAT THEN YOU'RE FUCKED AND IT'S YOUR FAULT FOR NOT READING THE EXTRA RESOURSES I HID WITHOUT TELLING ANYONE THEY WERE THERE. WHAT? YOU HAVE A QUESTION? THAT'S A YOU PROBLEM, IDIOT! 
"
engineers are so bad at this, like my man I AM AN ARCHITECT I AM DUMB PLEASE DON'T EXPLAIN LIKE YOU ARE GIVING THIS CLASS TO ENGINEERING STUDENTS WHO KNOW THIS STUFF ALREADY, like it is really funny because, if one person fails a class you can say it is their fault, but if almost everyone is failing your class you are a dog shit teacher, like the problem is not 30 people it is probably the dude who is not teaching them at all