(Lack of) heating
We feel guilty for complaining about the cold after having spoken to some of our students. When we asked them how they keep warm, they replied:"We get everybody in the room (eight students per room!), close all the windows, and put our computer on!" When I half-jokingly replied:"You could also put the shower on!" they just gave me a puzzled look and asked why they would want to do that for? "For the steam from the hot water, of course!". That's when they bursted out laughing (the first genuine laugh I got out of them for a long time!) and explained that there was no such thing as hot water. I quickly changed topic before they could enquire about our three radiators and permanent hot water supply... We learned that day that even cold is relative!