Originally Posted by econ

Well, not all crews may do this. Flew SFO-DFW in F recently, and the pre-flight announcement went something like "there will be no food or beverage service in either cabin".

Then after a while in the air someone used their call button to get service. Then a few more people noticed this and did the same thing.

Eventually, the crew relented and went through each row offering drinks and choice of sandwich or cheese/fruit plate, by this time around 2 hr into the flight.