In fact, IF you come into class late, I want you sweaty, panting, and utterly disheveled from having run 12 blocks just to try to get to class. I don't want you showered...in fact, I don't want you dressed in normal clothing. You had better looked like you rolled out of bed and came directly to class. Walking in at a normal pace, with blow-dried hair and a carefully chosen ensemble is not acceptable. And less acceptable? Sauntering. I do not want anyone sauntering in late. Asses.
Also, if you are more than 15 minutes late, DON'T COME AT ALL! Some of us have the respect of professors and the educational system to wake up on time and get to class...not only on time...EARLY. If I get to a class less than 10 minutes before it begins, I feel late.
YOU SHOULD TOO!