Given a travel related situation, and given a specific question about the situation, summarize the question into a title

[EX Q]: Today/yesterday, I had a multi-leg flight going IAD-CPH-AMS (Washington Dulles International Airport - Copenhagen Airport - amsterdam Airport Schiphol). I had a connection time of one hour in CPH, which is more than enough according to the CPH airport website. At IAD, technical issues delayed departure by more than an hour, causing me to miss my original connection. 

The airline rebooked me on a later flight to AMS (departure at 12:35 instead of 08:15), and when I went to the CPH transfer center to get my new boarding pass, they also gave me meal vouchers.

Did accepting the vouchers cause me to give up my rights to EU flight delay compensation (4+ hour delay on a transatlantic itinerary) because the vouchers are compensation too? 

UPDATE 27-9-2016:
The airline just told me that my EU 261/2004 claim has been approved, and that the full €600 compensation is on its way to me. So now we've got official confirmation that meal vouchers don't exclude you from the monetary compensation. 

[EX A]: Did I opt out of compensation by accepting meal vouchers?

[EX Q]: My question is inspired by this one: Japanese etiquette: Most common (and offensive) mistakes? Which made me think about my upcoming trip to China. 

As a Dutch citizen, I have experienced a lot that what we consider normal behavior, is considered rude or absolutely not-done, in other, even bordering, European countries. I've not been in Asia before, but I am prepared to try to adjust to the local customs as much as possible, and I think there is a lot that can be done wrong.

I've read the linked question with great interest, but I wonder to what degree these answers will actually apply to China? 

For example, I recently learned that when toasting, you show respect by keeping your glass lower than the other.

[EX A]: Chinese etiquette: Most common mistakes

[EX Q]: I am applying for a Romanian Short Stay Visa. I have a valid US visa. I am travelling from the US to Romania. Typically, I would need a Schengen Visa if I need to go to a Schengen Zone as my nationality is Indian. 
My flight is US - Frankfurt - Romania. Can I transit through Frankfurt to Romania without a Schengen visa?

I see most answers from this link Do I need a visa to transit (or layover) in the Schengen area? 
But what I am not sure is:


Can you transfer without leaving the international area of the airport?


Question: Can I go to a Romania from Frankfurt without leaving the international area?

[EX A]:
Can I transit through Frankfurt to Romania without a Schengen visa?