Chewing and smoking are very "destructive behavior" and any punishment now that keeps someone from having their mouth, tongue, lips, and lungs rotting from cancer later cannot be too harsh. I've had relatives die, and there those dieing now, from tobacco use. Its unbelievable to me that its legal from anyone to possess but that's big government and big business. (Soapbox)
Plus its illegal to possess, just like beer.
But getting kicked out of school for a day for anything always seems to me like the boss coming in and saying, "you screwed up, take the day off." The better punishment would be more school, not less. The problem with that is that school - which is supposed to be a good thing - now gets turned into a punishment...how about taking away your drivers license for 30 days...oh, that's already the law, I think...maybe enforce it?