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[[File:Calvinthesalesmanlemonade1.png|thumb|left|100px|The first...]][[File:Calvinthesalesmanllemonade2.png|thumb|120px|...and second lemonade stands]]Calvin has put up two lemonade stands over the years. The first time he sold it for five dollars a glass—during winter. He claimed that it had "all-natural refrigeration", which albeit true was no selling point. Another time, he was selling a single glass for an
otrageous $15, and his concoction was really just a lemon dropped in a pitcher of sewage. [[Susie Derkins]] tried to tell Calvin about this, but Calvin was able to justify the product and pricing through economical phenomena.