One brake Single-Speed fools

I rarely do, but I tend to ride an economical fairly spinning gear (spinning is far more efficient). So I ride fast and consistently, but if someone wants to switch to a really hard gear and overtake then they can and I can't stop that. Like downhill on London Bridge, if I am spinning and some geared guy decides to switch to a hard gear to overtake, what can I do? What pisses me off is that invariably as soon as they overtake they coast or slow down.

Up your cadence and blast dem fools!