Not a riot as such
I went on an anti-BNP demonstration in 1993 which culminated at a fork in the road which had the original route past BNP HQ in one direction (blocked by police, who had decided the day before not to allow the demonstration to pass this way) and the police's preferred route in the other.
Faced with the frankly terrifying prospect of having literally tens of youths throwing their balsa wood banners at them, the police took the only sensible course of action which was to have the mounted police charge directly at the crowds, whilst those officers who were only armed with batons, ran towards us swinging their batons indiscriminately.
This was reported on the news as "rioting demonstrators". It didn't look like a riot to me...
Alt: None of the UK ones, does Berlusconi still have a policy of giving top jobs to models?
( tangledupinblue hairy badge with moving eyes, Mon 8 Aug 2011, 12:38, 2 replies, latest was 15 years ago)

No, No, No.
We've already had it amply pointed out here that the police do not overreact or lie. You must have been mistaken.
(Bazongaloid, Mon 8 Aug 2011, 12:44, Reply)

Of course, silly me...
Come to think of it, all those people with blood pouring from the backs of their heads probably just fell down the stairs or something.
( tangledupinblue hairy badge with moving eyes, Mon 8 Aug 2011, 12:52, Reply)

I was there too
And was just about to type up my story... I recall being about 10 rows back thinking "oh shit this is going off" and trying to get away sharpish, then seeing the crowds move apart as those jolly chaps and their lovely horses came out for a trott
(Bonzodog29 is an unemployed sponge of the worst kind, Mon 8 Aug 2011, 13:21, Reply)

It was scary
"Link arms" they all shouted, so I found the biggest sturdiest looking guy in the vicinity and linked arms with him.
( tangledupinblue hairy badge with moving eyes, Mon 8 Aug 2011, 13:42, Reply)