A smart method to discover problems with Chinese tones

Studying Chinese, it’s sometimes hard to assess the quality one’s own pronunciation. People in your surrounding might understand what you are saying, but how do you verify how clear your pronunciation is? In an ideal world, it would be easy, you could just ask a qualified teacher and given enough time it would be possible to figure out most of the pronunciation-related problems. However, you seldom have that option, so here I present a method to test your own pronunciation which is difficult to fool and has proven extremely useful in practice.