Yeah, I've had people grab my kite bar, as well. It's usually a complete surprise.

If Kamikazi thinks you are to blame for this happening, point Kamikazi out to me at the next session so I can walk up and grab his bar and throw his kite into a full-on loop. I assume that after he gets up off of the ground he won't be jumping up and down blaming himself for the incident.

In a situation like this, there is not much you can do except try to slap the person's hand off of the bar and by then the excitement has probably already started anyhow.