As I was walking down the Mall, there was a homeless guy, who was selling The Big Issue (a street magazine designed to help the homeless and unemployed help themselves). I said hi to him, and he made a comment "looks like someone will be warm tonight".
It smacked me right between the eyes as I walked away that this guy had a different perspective than me. The first thing he thought of when he saw the heater was warmth (which makes sense), but warmth and home. That wasn't even on my radar when I bought it (I was simply fulfilling a task, really), and, to be honest, I felt terrible.
It's so easy to take so much for granted, and forget how lucky we are.