I like the one where three astronauts go into space and crashland on a alien planet. They go in separate directions to get a lay of the land and one goes and kills another one for his water and as the guy's dying he draws a line with two other lines going through it. the other astronaut goes and kills the other guy for his water and keeps walking, until he realizes what the drawing meant when he see's a power line and realizes they crash landed on earth.