Any sorry excuse a Friend may give when times are tough at school. If you are overwhelmed, you should just drop the course, if you are busy you should drop the course, if you are lazy you should drop the course. Anything that demands minimal exertion will lead to dropping a course in university
Marie: "This subject is really hard, I dont think i will have enough time to study for it"
Dimitri: "Just drop the course bro"