Running down the stairs, opening and slamming the door. Light wooden door with glass gives a flat sound. I replaced it with a heavier door for my own project. Recorded stereo (ortf) with a pair of akg c-460.
Recorded with a sony ecm stereo microphone. It's hard to tell what this slam is, which makes it very versatile. I'm pretty sure, however, that it is in fact a distant car door slam.