Texan here, I just had to deal with repairs for one of the units in the house not too long ago. The worst part wasn't the heat at all, it was the endless whining from the fat and her mother. I was working outside regularly at the time, and had no problem cooling down inside by grabbing some cold water. It's a nice perk, but nowhere near necessary.  Funny thing too, humans are actually polite to workers, or at least I am, while hammy magoo flipped her shit on the service guys that came out to replace the coil.