GUM is the rudest invention

I have taught for the past 26 years. I tell students on the first day of class within the first 10 minutes of class how I HATE GUM and those who chew in my class. I tell them it is a sure way to fail my class. Because I teach math I think it is also necessary to give justifications for Mrs. Greene's Theorem. I tell them that people do not know how to open, chew or dispose of gum. This is evident by the way they make noises opening the package, by the way they smack, pop, and suck gum and lastly by the way they leave their unwanted gum all of the room. But because we live in a democratic society I tell students that I will allow gum in my class but if one person pops, blow bubbles, plays with it or disposes it any where but the trash can I will give 10 extra assignments. They can also decide that the class will not chew gum and I will deduct 10 assignments. I don't know if I always teach smart kids but they always chose the later. Now if I can find a way to clean up candy wrappers.