You (pl.) named a boat Grimdark Shenanigans? I think that tells a lot about how serious the game is, yet you're being called out on not playing top-tier, but having fun? Try creating an independently powerful lawful neutral character, and call the guards on the party whenever it gets unnecessarily evil. Seriously, nobody ever expects anyone to call law enforcement in any game ever; it's almost a shenanigan on its own.
Actually, we named it the Blood Eagle, after the psycho Lawful Evil wizard went and blood eagle'd Half of the crew after we mutinied. I just meant that if it weren't for the grimdark, we'd have no name for the ship.
We aren't a very serious group compared to others. Whatever is fun, we do. Though the adventure path is literally based on the PCs being pirates, and the entire region is devoid of anything resembling law enforcement.
Not much I can do, and being a necromantic type, I can't really call people out on it, since I'm also one of the ones playing puppets with corpses. At least I'm not as bad as the wizard, who is a dark, broody type necromancer with an intense hard-on for murder and violence. If I knew there would be two necromancers as players, I probably would have played another class, even though we are still two different classes, since there is more than a little bit of overlap between us, play-wise.
The skald gave the wizard the blood eagle idea, though skald only wanted to do it to the two cruel leaders of the ship we took over. Wizard did it to everyone who sided with the leaders, who immediately surrendered after we downed the leaders, and thus were harmless.