At one the locales I visit, the local fuel guy sits at the airport all weekend, and charges a "callout fee" of 150$ for our 5 flights a day. He also charges between 4pm-8am, I depart at 830 but won't call him until 8:01 Needless to say I tanker fuel when able. sAnother station gives us free coffee, and Ice Cream. They also offered me a job chucking bags.