Dropping Attendance?

I actually gave out bonus points the day after my test. I had about 17 students in one class and 30 in the other. I guess there's no point showing up the first period after a test, right? The kids are also getting bad about skipping if the weather is the least bit bad. We'll see how the grades go for the next test if they're missing a lot of class. Of course, we're also being decimated by the flu, which doesn't help things.