Police were surrounding or detaining a protester during the LA riots, and someone starting setting off fireworks.
The LAPD horse got scared and started freaking out, ending up stepping all over the protester.
See here:
crankers.com
The LAPD horse got scared and started freaking out, ending up stepping all over the protester.
See here:

LAPD horse tramples on anti-ICE agitator
LAPD horse got scared when fireworks went off, and the horse ended up trampling on one of the anti-ICE agitators who were detained.