A person is guilty of a public nuisance, who does any act, or is guilty of an illegal omission, which causes any common injury, danger or annoyance to the public, or to the people in general who dwell or occupy property in the vicinity, or which must necessarily cause injury, obstruction, danger or annoyance to persons who may have occasion to use any public right.
Specifically, the following activities are deemed annoying or cause annoyance:
A. shouting loudly
B. chanting slogans
C. waving flags
D. holding placards
E. blowing whistles loudly
F. beating drums
Naturally, the thousands at the yearly national day parade will just have to learn to pipe it down. No more inflated noise makers, or whirling clappers. Whistles and flags will have to be stowed securely in the goodie bags till you reach home, and the neighbours better not catch you blowing or waving said offensive articles within hearing or sighting range. Do it with curtains drawn and windows tightly shut. Or they might file a police report faster than you can say, "Well, I'd be a monkey's uncle!" The Kallang roar will be a no no. Shouting encouragement for J-Lo to wiggle her bodacious bum, definitely a chargeable offence. And please, please stow away that greeting sign when welcoming home another gold, silver or bronze medal winner at Changi airport.
But it's okay to tap a stick, an umbrella or a net on the ground, to tell the monkeys to go away. Just remember not to shout, chant, whistle, beat your own drums or wave a white flag of surrender. Don't waste time with the placards, the monkeys can't read. If they could, the laws would not be so inanely interpreted.