While I still can't stand lazy teachers, I CAN say I almost understand why the teacher in this cartoon would have done what she did. There are times when the paperwork and the minor details become overwhelming. Student achievement almost seems to take a back seat. That is a scary thought, but there are only so many minutes in a day.
I get to work anywhere from an hour to three hours early on a daily basis. I work at least six hours every weekend grading papers and putting together lesson plans. I would definitely NOT consider myself lazy, yet I know I could be doing more for my students. THAT is the part that is hard to swallow. No matter what we do as teachers it is sometimes not enough for that one student who just isn't "getting it" or that student who needs more to be challenged.
So, we do what we can. Sometimes that means grading papers while the students are working in centers. I used to consider that lazy. Now I just call it good time management.