Who Spiked the Tea In the Teachers Mess

Things just don't add up, there's something not right, For half two on a Tuesday this is an unusual sight,? The teachers are all laughing and havin de craic, Mr. Cotter's doin the robot, And so's Mr. Mac, Mr. Doyle's walking backwards, sayin hello as he leaves, Miss. Flynn's disco dancing like she just popped ten E's, Mr. Harris has lost it, has his tie round his head, Thinks he's an Indian with his face painted red, Principal Woods is tryin to fight it, has got his back to the wall, His eyes are like saucers, but his minds on the ball, He knows this is all wrong, and someone better confess To spiking the tea in the teachers mess.