I got a phone call earlier this year from the school nurse saying she was concerned because my son had passed out while on the lunch line. I went to pick him up and he seemed a little dazed, but okay. My kid couldn't remember anything about what happened beforehand, so I made an appointment with his pediatrician an hour later. Right as we were getting ready to leave, he shieply said, Mom, I just remembered that right before I passed out, we were playing a game to see who could turn their face the reddest. So my kid had me thinking he had a brain tumor, but no, he just held his breath until he passed out and not a single other kid thought they should mention that to the teacher.