Please take note, this is not a generalization, It doesn't mean that all lecturers fall under one of the groups below, the content of this topic is based on personal experience..... I believe we all have our opinion, so please feel free to add yours.....let's begin

(1) The Sadists
These set of lecturers are always sad, unfriendly and can never be impressed, no matter how hard you try to impress them or make them smile, all your attempts just go down like the content in a flushed toilet. their classes are so boring, they are the worst set of exam invigilators, students pray for them not to invigilate complex exams,
(2) The Comedians
These set of lecturers are generally loved by students, they are well known for their good sense of humour, Their classes are never boring as they combine comedy with whatever topic they're lecturing on.
Follow the link below to see see more

http://insidefuto..com.ng/2016/08/6-types-of-lecturers-you-will-find-in.html