Loftywinds said..
Yeah but in light winds, it's pretty hard to control the kite, let alone stay upwind to avoid situations. I am sure most caught in this dilemma try their best, but accidents can happen anyway.
In lighter winds it can be hard to keep things together when you raise your kite overhead, especially if some clown has cut close inside you. At best you stop and may have to settle into the water. At worst your kite can drop out of the sky.
The solution is, as always, to keep an eye on where you are going and anticipate things that can happen and avoid them.
In the case of the original poster, it sounds like she has good reason to be peeved if some boofhead is not using his superior skills and power and manoeuvrability to simply turn around and go the other way.