Ct. 543, 546 (1996)." "Tumultuous behavior is conduct which may be 'characterized as involving riotous commotion and excessively unreasonable noise so as to constitute a public nuisance .' Commonwealth v. Sholley , 432 Mass. at 729, quoting from Commonwealth v. A Juvenile , 368 Mass. 580, 597 (1975). Compare Commonwealth v. Zettel