And yet, as I walk down the street in an older neighborhood with air conditioners in the transoms, I am hit by blasts of superheated air. I likewise also hear

And yet, as I walk down the street in an older neighborhood with air conditioners in the transoms, I am hit by blasts of superheated air. I likewise also hear the noise (although in my lifetime air conditioners have gotten quieter, I suspect as a side-effect of air conditioners becoming more efficient). I guess I'm trying to say that the expression "at someone else's expense" not just a question of the surface temperature.