Story: With a simple compass and a yardstick, I constructed a scientific device to align a satellite dish on my roof with a satellite in the sky miles, and miles, and miles away. I managed to receive a signal on my first try! I boasted to my friends, who in turn bought satellites and then asked me to bring that scientific device I created over to their places. Moral of the story: When you make science work for you, friends will make you work for them (for free).
(I might have ‘lost’ that scientific device soon afterwards, much to the disappointment of some other friends)