Issue: attitude - missed class

Here we go again. The ranting on the missing kids.
I have noticed that students made it an excuse of their co-curricular involvement as the reason for not being able to hand in classwork/ homework. Some create such co-curricular activity just to get away. As a matter of fact, they would avoid the assignment at all cost. Problem is, this work involves important marks.

I remembered differently. Out of respect to the teachers (or was it out of fear...yikes) I would always make sure to not be highlighted as the kid who did not pass up work. And out of respect too, I made sure I do the learning parts by asking friends. Of course out of my conscience for my future I would always make sure important assignment that involved my mark is done (thanks to my father's non-ending nag on do-now-pay-later lecture)

So far this is what I figured out from my own experience on how to make a student commit.
- play by what is important for them. If it's their examination marks, make an assignment cost a partial of the exam result. (Done!)
- use their strength/ interest to set up the assignment. (This is almost impossible, as there are so many individuals I have to consider. But I figured that they like to use social network, so I set the assignment up in the same platform - considered done!)
- use fear. Yikes - my dad used fear. He said if I ever mention about wanting to miss a school he will immediately drop me out. I did not dare to even mention it even when I was sick! This, I am still figuring out what do they fear most.
- give do-now-pay-later lecture. At least if it gets through to half the class, I am reaching to a better attitude of students in the future. Yet a lecture is still boring, I bet they would sleep halfway.

My target is:
- my students send in the assignment.
- they send it in on time
- they follow up if they miss class
- no copying work just to get it done.

How? I need to walk my talk (more like threats)
Yelp yelp!