I do understand fully where this coach is coming from. I also think that there is an over-abundance of 'head bumps' being classified as concussions. And trust me, I know what a concussion looks like. My oldest CP suffered a concussion at school cheer 2 years ago and it was obvious immediately! She couldn't remember who the flyer was and was immediately nauseous and had a killer headache. I took her to our pediatrician within an hour of the incident, who sent us to get a scan because she thought she had a cracked skull. Thankfully it wasn't. Two weeks ago, she and another cheerleader collided while tumbling and the cheer coach freaked out and sent her to the nurse asking me to take her to the hospital. She told them that it wasn't a concussion, that she didn't hit her head and that she was fully aware of what a concussion was. Never the less, she was forced to miss 2 days of school. I understand about not taking concussions too lightly, but I do think that coaches, school nurses and trainers should be required to take classes in identifying and understanding concussions.