I was a total frequent flyer, especially in 4th and 5th grade. My parents had recently divorced, I was in a new school and my mom was never around so I needed TLC. We didn't actually have a real school nurse, it was the secretary and she would take a temp and give you tylenol or call home. There was no triage system or anything. My mom could never actually come pick me up so I would just sort of hang out in the office. I think now I am SUPER strict b/c I assume they are all malingering. My own DS who is in 6th grade goes to his nurse a lot and she and I commiserate via email all the time, LOL.
I do remember once in High School though, I was getting my aura before a migraine and I knew I had a narrow window to get home. The secretary tried to send me home, but My mom insisted they put me in a cab and send me to her office. I think she thought I was faking (I wonder why, LOL). I always vomit with migraines and sure enough, just as the cab pulls in front of her office building, I hurled ALL OVER the cab. God bless that lovely cab driver who was super nice about it and felt terrible for me.