At our institution it becomes generally known that on the first day of each new rotation, the rules of our school will be reviewed. This sets up an attitude that they can miss this day and not miss any of the corriculum. This bores the heck out of the students after they have heard it several times. Now when it comes to my class it has become known that I spend minimal time on this rule procedure and launch into the subject to be learned very rapidly. Thus they do not have this time to become bored. Also on day two the ones who did not show are informed that it is thier responsibility to catch them selves up on what was missed.