Red Kite getting a bit too cocky

Hi 

I live in Oxfordshire and we are lucky to have many Red Kites nearby.  But, people have been feeding them for years so they are getting more and more confident.

On Saturday one swooped and stole food of a plate  -  this plate was between my wife and me - less than a meter and we were both sat there facing each other at the time - exciting - yes, a bit scary - yes - we certainly don't want it repeated.

Any advice on how to keep them away?  

Thanks

Andrew