This is not thuggish but I figure I share it here anyway since it s pretty entrepreneurial: A long time ago I was a housekeeper in Yosemite National Park. When I wasn't working, I d roam around the valley, checking out its nooks and crannies. One day I decided to hike up Yosemite Falls. For those of you who dont know about the fall, it is only 7 miles round trip but the elevation is a steep 3650ft. This means lots and lots of brutal switchbacks under the intense summer heat. Many tourists overlooked that (or they didn't know how to read a topo map) and didn't bring any food or water, thinking it was just an easy stroll in the park. When they reached the top, exhausted and dehydrated, welcoming them there would be a man filtering water from the creek with his pump and selling it for a dollar a pop. So there it was, a line of out of shape, thirsty hikers, buying ice cold water from a man under the shade, with the gorgeous Sierra Nevada as a backdrop.