Seems a bit excessive...

Obviously when/if they eventually learn the context of that game, it'll be a disturbing memory (though probably a source of humour too...) but 48 years?

This would seem a lot more traumatizing if he was having one girl do this alone. Since they all did it, it's like, no one's singled out, and it actually didn't do harm, unless the sauces had trans fat or something.

This is just very difficult to understand, when children are being constantly neglected or abused, that they punish so very much for something like this which involves no injury, and which really does not seem like it would be something traumatic...

Normally I'm pretty condemnative of a lot of stuff some others hear are forgiving of but 48 years for getting a kick out of wasting class time?