Well, in my case, it's the nodding at each other part that bugs me.
Now that I think about it, that act is very suspicious. If the nav pixie was mind controlled, there is no reason for her nor Bishop to nod. Similarly, if it's just the nav pixie doing bishop a favor, bishop would nod but the pixie wouldn't.
But the pixie and bishop nod at each other. This implies the two are working for someone since the only example of a nav pixie we seen so far is so passive and wouldn't do things with out commands.
How's that for conspiracy?