Little is known about how bouncer–patron interactions may influence a bouncer’s use of physical aggression. To address this gap, we offer a micro-interactional analysis examining real-life aggressive bouncer behavior captured by venue surveillance cameras. Quantitative results show that bouncer physical aggression is associated with interactions in which bouncers are directly involved as a conflict party, but not with interactions where they solely intervene as a third-party. Further, a qualitative analysis of emotional cues identifies anger as a plausible mechanism underpinning bouncer aggression. We consider the implications of these findings for night-time economy violence prevention strategies and discuss the relevance of video data for barroom research.