One of my fondest memories involves Greenpeace.
July 4th 1983, Vallejo, CA. Greenpeace brought the Rainbow Warrior up the Napa River with the stated objective to take over a nuke Submarine.
We were fresh out of drydock and the boat was covered in scaffolding. We were armed with fire hoses and staged in the scaffolding.
Rainbow Warrior came up the river and had handful of Zodiac boats buzzing around. One of them came too close to our boat and I had the absolute pleasure of knocking two of the dirty hippies out of their boat and into the Napa River with a fire hose.
They did manage to get 2 people on the deck of the USS Nautilus (decommissioned). They were nabbed and escorted off the base and released.