Restrooms at gas stations were an unpleasant and shocking surprise; I had never considered the serious drawbacks of such lazily-cleaned rooms. I was completely unable to ignore the filth, and wasted a burst of power to turn the sink, floors and porcelain toilet into sparkling, clean examples of their kind before using the facility. I felt that was a much less judgmental response than simply blowing the place off the face of the Earth, which was also a distinct temptation, especially when the storekeeper overcharged me for a bottle of cold water.