No, stickers would have been bad news. I thought this was funny. The kids who did it thought it would make me mad. A few didn't survive the drive home. (A few stickers--not students.) These that remained were picked off by my two sons. I saw a couple guys at the Subaru Challenge who used fridge magnets like these to form their numbers, so I'll hang onto some of them for that purpose for anyone who needs numbers at the next race I attend.
Yeah, silly pranks are as open to private schools as well. I just said public cause that's where I work.