Dafish people were flying these things for years without all that much harm before kitesurfing came along and rewrote the safety rule book. It can be done with common sense.
Tosh - if you fly it, use your head.
1. Space downwind - 100m minimum directly downwind of you with no fences cows utes etc
2. Not gusty - somewhere the wind has a steady clean path to you, not over trees/buildings etc
3. Well under 15kts, preferably as steady wind as possible around 10-12kts
4. Never tie yourself to anything. You can go up the lenth of the rope then drop on your head and die. Happened in QLD a while back.
5. Getting air on land is never advised. By all means learn to fly but don't get cocky and start sending the kite up trying to lift off the ground. Save that for over water with a depowerable kite.
6. If you get pulled forward off you feet, don't dig your heels in and fight it, rather flop forward and drag on your belly. You might go headfirst thru cow poo but you'll be less likely to break anything.
7. Don't tether yourself to the kite in any way. You have space, use it. If you get in any kind of trouble, yanked hard, or more than an inch off the ground, just let it go.
If you do all that, probably can learn safely.
Or you could sell it in the buy/sell section and save a few extra bucks and buy something like this:
www.seabreeze.com.au/Classifieds/Kitesurfing-Kites/~aj2u6/2013-Ozone-Ignition-Trainer-Kite-16Mt-16-metre.aspx?search=0cZFPRBE5LgN2Vh5TPsXnUqr5IXyPRUV