Don't laugh, but I was a big wrestling fan when I was a kid.
With PPV TV wrestling being what it is now this may sound strange, but I remember being ringside on more than a couple of occasions when thousands of screaming folks were on their feet ... and things seemed seriously ready to get out of hand.
Here's an account from Wikipedia:
"After working in Stampede for a while The Fabulous Kangaroos started to travel across the United States, headlining shows wherever they went due to their ability to rile up crowds with their heel (bad guy) tactics.
"On one occasion in August 1958, The Kangaroos, or "Kangaroo Men" as they were billed, nearly caused a riot in Madison Square Garden during a match against Antonino Rocca and Miguel Pérez; the fans began to throw fruit and stones at them. [Remember this happened in New York City, not Belton]
"After the match ended without a decisive winner, the promoters stepped in, turned up the arena lights, and played the National Anthem to stop a potential riot. This was a common tactic used at the time by the New York promoters to prevent riots and help the heels leave the arena unharmed."
Doesn't that seem amazing ... since everybody knows wrestling is "fake"?
Of course, now days crowds are too "sophisticated" & "experienced" to get that excited ... about almost anything.