Question: Is it rude to ask for the entire can of soda during beverage service on a flight? Once they fill that little cup up with ice cubes, there’s room for just a couple of sips’ worth of soda.

Answer: It’s not rude to ask (as long as you say, "Could I please have the full can of Diet Coke?," instead of "Gimme the whole can!"), but I can’t predict whether you’ll get it or not. Some people tell me this always works for them; others have had the flight attendant say no. I can, however, offer an alternative suggestion: Ask for your soda with no ice. Or buy a 20-ounce bottle in the airport and bring it on board with you.

Q: What should you do if the people in the hotel room next to you are talking well into the wee hours? They weren’t yelling or anything, but I think they were in bed and their headboard was right on the other side of the wall from my own, and the walls were thin. I was tempted to say, "Excuse me, but I can hear you," but I didn’t. Should I have called the manager and asked him to tell them to pipe down?

A: I don’t think they were doing anything wrong. Unfortunately, you just picked a hotel with extremely thin walls and bad room layout. Shouting, loud music, something bouncing off the walls — those are reasons to call the manager and ask him to step in and handle it. In this case, where it’s just a normal conversation, the only reason to call the manager would be to request a room change. If it was bothering you that much, perhaps it would’ve been worth it, even in the middle of the night. Also, it’s always a smart idea to bring earplugs.

Email travel etiquette questions to Lesley Carlin at deartripadvisor@tripadvisor.com.