The lack of shame today is wild. I wouldn't expect kids/friends to be mean but all the "exhibitionist of disorder" shyt wouldn't be funny if more people simply cut through the bullshyt and made these people feel bad. In this case, by mentioning their own scores, or scores of people they know, or what their parent said about what's a good and bad score etc.
Kids will rise or fall to the water level surrounding them. If everybody is failing the class, everyone is fine with failing together. If you're the only person failing, everyone else is poised to graduate except you, and the class clown shyt you entertained them with initially is no longer working...suddenly you're compelled to better yourself or truly fall beneath the cracks.