While beating the dead horse is easy, it requires experience nonetheless. Is it possible to play a song composed by Beethoven when you're first learning how to play the piano? No it isn’t, you'd learn songs like "Marry Had a Little Lamb" first and than you'd gradually learn more difficult songs. Beating the dead horse is the exact same thing, you need to know how to beat the dead fly, cat, dog, pig, and so on first. When you know how to beat those animals, beating this animal should be a piece of cake and shouldn't require an explanation.