The Grateful Dead's song "Monkey and the Engineer" tells a whimsical story about an engineer and his mischievous monkey companion. The engineer drives a locomotive and is always accompanied by the monkey, who sits on a stool and watches his every move. One day, the engineer decides to take a break and leaves the monkey in charge of the locomotive. However, the curious monkey pulls the throttle, causing the train to speed up unexpectedly at a rapid 80 miles per hour. As the locomotive races down the mainline, the worried engineer contacts the dispatcher to report the situation. The dispatcher communicates with the switch operator, instructing them to open up the necessary switches and clear the way for the out-of-control train. Meanwhile, the monkey gleefully maintains control of the locomotive. Despite the chaos caused by the monkey's actions, the song portrays a lighthearted and humorous tone. The story highlights the unpredictability and the comical nature of the monkey's antics, while showcasing the camaraderie and cooperation between the engineer and the dispatcher. Overall, "Monkey and the Engineer" is a playful tale of a mischievous monkey taking control of a locomotive, amusingly presenting the absurdity and adventure of the situation.