The alley lay before me, initially dark and menacing. But just then an otherworldly sound could be heard to my left. A groan, almost. Then I saw the lights. Strange, pulsating orange lights, and white lights of blinding intensity.

Was I about to encounter representatives from another world?

Or was it just a garbage truck collecting the refuse from the previous day?

Unfortunately the Men In Black have asked me not to talk to you about it, so you'll have to work it out for yourselves.