Anyone experienced culture shock before?

I have found too that when somone does or says something that I don't agree with or think is rude or stupid, I need to take a mental step back end figure out WHY they did that. If you can figure out where they're coming from, you still may not agree with them but you now know it's nothing personal against you and you can roll with it. Maybe you can even find a polite way to explain where you're coming from. Cultural differences are not overcome over night, but the first step is realising there IS a cultural difference, and taking that into acount.