Well, I do have a strict sick policy, believe it or not. However, knowing this child and his history of 1-random-pukes and NO other signs of anything. Waking up 110% and my own son's experience with this, I accepted him. He was fine. We had a great day.
If I kept my son home everytime he puked through the night at that age (granted he WAS home with me, but hypothetically) he'd have spent quite a few months home. Or if I'd shut down each time it happened, I'd have bee poor and closed down pretty darn fast!

Sometimes there are other things to consider.
Anyways, it was just food for thought!
Have a great day, ladies and an even better weekend!