shadow swings are dangerous and can really wreak your technique if you are doing it wrong!!! Just joking....But shadow swings can be dangerous though.... I can hardly put my racquet down because I suffer from this thing called Tennis Addiction Syndrome so I have to shadow swing like 500 times a day and sometimes it's automatic when my mind is thinking about something and my body is moving on it's own, shadow swinging nonstop. Living in a small apartment, I've already smashed my racquet into the wall like 10 times which sucks because it wrecks my wall, my racquets paint and sometimes splits the head guard and so I have to keep buying new grommets. How does one cure the uncontrollable desire to shadow swing? It's stressing me out emotionally and financially.