My freshman year I had a 8:00 class and would get there 8:15 or so. Numerous times. One day the proff barked at me..do you set your alarm clock for 7:50 and lost his temper.
I had a solid B+ on the test >multiple choice so he could not dock me.
Gave me a C - for the class.
Learned right there to be punctal and never miss class.
@GrouchoTex
My first semester after returning to school after my Navy hitch, I must have been a soph. And I had changed my major from Organic Chemistry to Electronics Technology. I had talked to the dean to see if there were any classes I could skip, but they wanted all my money. One of my first classes was dc circuits. After the first week, I would show up to take a test, come to the next session to pick up my graded test, find out when the next test was, and skip all the remaining classes. The prof gave me the evil eye, but didn't jack with my grade. I aced all those tests.
I took a digital class from him as well. He told the class in prep for one test that he was going to help bring up the class's grades. Since digital is based on zeros and ones, there was going to be only one question on the test, and you would get either a 100 or a zero. People were freaking out with worry, instead of being happy of getting an easy 100 on a test. He never put anything on a test that he didn't go over 3 times in class.
We became good friends and even took some classes together as he prepared to teach them as well. I found he also worked for my #1 customer Schlumberger as I worked my way thru school as an (OJT trained) custom downhole transformer design engineer.