In Bavaria, an avowed activist can be imprisoned. Before the act. I find this absurd. He serves 30 days for being honest, or naive, depending on your point of view.
Some stick to the streets and cause traffic jams. Personally, I would be interested to know how they do it with peeing. A few hours on a cold road, that goes on the bladder, right?
Others mess up famous pictures with soup or mashed potatoes. Is usually not so bad, the really expensive paintings are behind glass or just copies. Some art connoisseurs claim.
By the way, for me it is not understandable why these works are worth millions. More sensible things could be paid for them.
What kind of protest should the last generation make to be less criminal and at the same time do something for the climate ? Criticizing is easy, but showing a real way out is hard. There will probably be no real change in climate policy until the damage melts profits away. But then it will be too late. Probably it is already too late now.