My parents let me stay home the day my junior class went to 6 Flags. I didn't want to use my money from my job to pay to attend and since it was a field day I would have just been stuck in a study hall all day. Also, the morning after my college acceptance came in the mail my dad woke me up and took me on a road trip to the college so we could go buy some branded gear.
Otherwise, I don't think I ever even missed a day of school.