Footsteps behind him -- that's fine, Zephyr's probably faster, though he'll admit he's never tested his speed against X's in an open race. If he can get to the stairs he can cheat down them five or six at a time--

--he doesn't make it that far. Weight slams into him and Zephyr hits the ground, not swearing only because he's just bitten his tongue. He takes a moment to get his breath back, tasting copper, then squirms. "Get off me." He doesn't really intend the rising panic in his voice, it just kind of happens.