My favourite kind of gig as a youngster.
Accidents can happen, so leave your Sunday best at home and set up your gear wisely. We used to play a tiny place in Scarborough called the Jolly Roger IIRC, couldn't have held more than 50 people shoulder to shoulder once the gear was in, but they were blinding nights. If you were in there you were watching the band, no room to chat or sit down. Sure beer got spilled, sure people fell over, sure band space was breached, but it wasn't out of malice or lack of respect, just hi-jinks and the logistics of the whole deal. As hairy as it could be, it was engaging and exciting for everyone in the room. I'd rather take the limited risks of that kind of gig that try and win over a spacious room of folk playing fruit machines and chatting loudly about Aunt Gladys's hysterectomy.