I've tried to stay on the good side of the law generally, 'cause I'm boring and don't like causing trouble. Maybe I've travelled on trains without a ticket a few times, rode a bike on the street while drunk at night, sneaked across the border and back between Switzerland and Germany without a passport 'cause I left it in my locker in the hotel and couldn't be bothered to go get it... Minor crap.
However, as part of a group, I was involved in a big protest. Whether or not what I did could be considered as being criminal, I did act against 'authority' and did get assaulted by security guards, even though I wasn't actually arrested like many of my peers, including my sister.
Here's some backstory anyway.
Several years ago my family and several of our friends opposed a housing estate that was being constructed over some wildlife habitat near my home. Legal action didn't get us very far, so my sister took it upon herself to set up a protest camp to physically stop the housing developers from tearing up the land. Many joined her, including seasoned protesters from across the country.
Near the end of the 2 year conflict, the developers fenced off the area, employing full-time security guards to block off roads and patrol the perimeter, then fenced off the protest camp in what was effectively a siege, blocking off their access to food and water, although they did allow protesters to leave if they chose to.
Several times, I tried to sneak my way into the cordoned area to toss provisions over the camp fence. I was caught a few times by the guards and frogmarched/carried out. Later on, I was involved in an attempt to storm the camp and tear down the fences with a group of 30 people as an act to oppose the siege - I think I was punched in the face by a guard in the chaos.
Later still, the developers hired bailiffs and started evicting the camp - Police oversaw this to keep the peace, and I was threatened with arrest when I tried to get close, despite being only a young teenager.
What the developers did was
all deemed to be illegal anyway and they were fined heavily. Maybe even that doesn't make standing against them being "correct" in the eyes of the law, but that's the closet thing I've done to proper criminal activity (except perhaps for later spraying graffiti and performing minor acts of vandalism/sabotage on construction equipment & materials) and makes a semi-interesting story. Sort of.