Hello, My son came home from school today with green marker all over his shirt. He told me that he had been sucking on the marker in class. How a teacher can allow a 6 year old to sit in class and suck on a marker right in front of her is beyond me. In any event, I'm a little concerned. I'm not sure if I should take him to the ER as a precaution or not. He hasn't complained of any stomach pain, or anything to that nature at all. Is taking him to the ER a bit extreme at this point?