Another tactic:
Teacher: THE BELL IS FOR ME, NOT FOR YOU.
*break*
Teacher: WHY AREN’T YOU COMING IN WHEN THE BELL RINGS?
Students: T̶̼͈͙̗̜͙̥͙̰͖̓h̴̨̛̠̱͈͍͔̩̤̥͎̯͌̒ͅę̸̧͕̼͔̝̣̿͌̋ ̵̛͈̝̖̩͎͖͆̋̓͊͘͠͝b̶̧̢͉͓͔̞͎̫͖̗̯͎̐̆͌̀̂͗̈́̐̕͠ę̶̦̩̝͎̥͑͊͜ͅl̴̨̳̜̭͍̰̩̫͖͚̫̆̋͆̈́̋̾͝͝l̸̢̛̙͐̍͆̌̅̅̀̎̌̽͠ ̷̛͇͓͈̜̌̒̑̐̈́͂͘͝͝i̶̻͆̅̐̂́̔̏̈͛͠s̵̹̩͎̟̺̬̱̥͍̃ ̵̢͓͓̳̳̜͇̿̇͘͘͝ͅḟ̸̡̡̛͈̼̲̀̅͝o̴̧̨̲͚͚͍͓̙̭̭̅̋͆̿̽́̐͗̚̕̚͜͝ṛ̴̣̝͌̿̆̀̔̅̾͝ ̵̟̳͙̥͓̣͓͚̗͓̯̄̋͑̈́y̸̹̽͂̔̆͛͐̕͝o̵̧̢̠͓̙̩͕͙̤̠̝͋̋͐̎̈͝u̵̢̗͕̮̬͎̠̩͙͊͋̏,̷̖̳̼̤̩̱̘̝͋́ ̶̛̭͈̘͇͓̜̦̩̉́̀̈̚͜ň̶̛̤͎̺̼̘̘̌̈́́̌͊̈́̐̐̚ͅo̸̡̨͕̺͚͇̩̺̒͠ͅṯ̷̡͕̼̙̟͔̘̪̪͇́̋̆͘ ̸̨̠̙̱͇͈͎̟͎̺͍̃̅̌͛̌f̶̢̪͙̱̠̥̦̬̌̂͛͛̔̋̚o̶̻̒̌͒̆̀͑̅́̃̇̈́r̷̙̭͐́̔͒̕ͅ ̷̳̺̜͔̘̯͔̥͎͉̾̓̐̑́̊̑̎́̚u̷͙͐s̵͉̪̼͎͋̑͗̃̀̅.̴̩͊̃̀̔̏̈́̒̓́̒͛̚