movie night. The offerings were: The Song Remains the Same, Fritz the Cat, Rocky Horror Picture Show, Heavy Metal and some southern CA reggae/ska concert movie.
You can imagine why they needed security with all the freaks that would show up for each of those movies milling around the lobby and outside. Fights every night.
Except for the Led Zeppelin moviegoers, those guys for some reason were super chill. They just wanted to buy snacks all night.