My Dad Is Coming to Career Day But Hopefully the Earth Will Be Destroyed — Chris Rumble

For twelve years, Rocky Rhodes has kept a well-guarded secret. Then his homeroom teacher sent him home with an envelope addressed to his dad and thus began Rocky's countdown to disaster. Now, apart from a miracle, the entire sixth grade is going to learn his secret in a big, BIG way. Rocky knows that the unveiling of his secret will mark the end of his life as he knows it. He will never be the same.