Many times. I determine success as being heard without being hurt. Protesters shouldn’t be injured or prosecuted if they’re following the law. Wrongful arrests happen when officers want to end a protest, but those charges are easily dropped. I’ve never experienced that personally, but some of my friends were charged at Occupy in 2011.

Oooh, oooh, I got one.

I went to multiple protests after the Iraq war and got my Iraq war-supporting government to immediately plummet in support and lose the next election. It was nice. No harmed irreplaceable monuments that I remember. The marches I attended were entirely peaceful, as well.