Tonight’s show is something of an exercise in contrast. While it’s a free event hosted by a rum company (which means lots of cheap drunks), the headliners are San Francisco’s druggy drone-rock outfit Wooden Shjips (which means lots of cheap stoners). What does this mean for you? In addition to great music—Wooden Shjips execute a flawless rock-trance that must be experienced live to be fully appreciated—you get first-rate people-watching! Drunks and stoners mingling in the same room all night! Expect proficient rock, inebriated boozehounds, and harshed vibes. With Night Beats. RSVP here. (Crocodile, 2200 Second Ave,, 8 pm, free with RSVP, 21+)