These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Acceptable Targets: Postal 2 lets you shoot Islamic (Hindu?) terrorists, Moral Guardians, the game's developers, and shotgun-wielding rednecks, among others. The expansion also includes a PETA-like organization.
Dude, Not Funny!: the rather blatant violence against certain groups (animals, random civilians, police/servicemen) smacks a little too hard if brought into the light of reality.
The game's initial start-up screen is the developers blatantly stating that this type of violence should stay in the game and not be played out for real.
Game Breaker: The likely reason that the Apocalypse Weekend expansion does not have a multiplayer component is that the new melee weapons are so much more effective than, well, every other weapon in the game.
Good Bad Bugs: There are several - lighting yourself on fire makes the instant-death fire harmless, dogs propel you skyhigh, and one well-aimed rocket lets you skip the "Confess your sins" and "Uncle Dave's birthday" chores.
You can prevent the Parents for Decency from storming the RWS HQ after you collect your paycheck just by dropping a grenade in the path of the one guy who rallies them all up to go forth and kill you and the RWS guys. When the in-game cutscene plays, he sets it off and dies, and the rest just stay there. It won't prevent some scripted protesters from showing up to attack if you try to exit out the front door, but it does mean you won't get shot in the face the instant you regain control of yourself and have much fewer people to fight off.
And you can trade him a signed Gary Coleman book for a Krotchy doll to skip the entire sequence. Or just buy it off of him (any amount of cash seems to do, but he'll take all the money you're carrying).
In Postal 2, you can pee on things. Peeing on people generally causes them to throw up violently, with some fairly advanced liquid physics for the game's time. In one level, the Dude gets gonorrhea, and his urine becomes green and burns when you pee, which guarantees that people you pee on will throw up in reaction. And it's possible to decapitate someone as they're vomiting, causing it to continue to spew out of their neck stump.
The cats and dogs in S&M gear near the end of Apocalypse Weekend.
Crosses the Line Twice: The opening scene alone undoubtedly offended MANY people and the film just kept going from there.
Squick: Dave Foley's penis makes an appearance in all its uncensored glory.