I was almost embarassed to say "zero" outside of fighting with my brother (like cats and dogs) but 010111 and PrplChknz make me feel better. Especialy Prpl - it takes couage to be that honest! Bravo!
I think I'd be embarassed to fight with another woman in a bar or club, the only thing that would make me do it is if I'm ambushed or if I'm in a rage. I grew up with too many people with anger management issues to have a cavalier attitude towards fighting, verbal or otherwise.
I concur with BerberElla, it really isn't that hard to see fights break out and that each community is different.
I've been on the dance floor or just bar floor before and felt movement behind me, turned around, and realized there's a brawl happening (men, women, both)
It happens a lot it's true, when a date is involved or people feel 'disrespected' i.e. a drink is accidentally spilled on them or their date - the hostility, confrontation, and shoving are immediate. The physical altercations I've seen have been instant and totally emotion fueled. However, I have heard from men that other men randomly pick fights with them at bars and you have to work to defuse and deflect them - that kind of bar fighting seems more cultural/ritual based and may be in line with what Geoff's post reports.
BTW, not all INTPs are pacificts. My brother has gotten into altercations before with strangers and he doesn't shy away from physical fights. He's more likely to engage physically than he is conversationally. I actually get concerned sometimes in public and pull him away from these situations.
I knew another guy..IXTX who's cultural background and community just meant a lot of physical fighting. He told me some stories about fights he'd been in. Some were quite funny. Fighting as a way of life and fighting even when you aren't even that angry or even really care about whatever the reason is.
One of his friends actually went to prison for a few years because of a fight. I thought he seemed "nice" but his other male friends made the comments, "Oh yeah, I can see that" and "Oh no, I wouldn't want to mess with him".
So anecdotally, I do know of folks who fight routinely and even enjoy it. I think the cultural/community influences and age make a bigger impact in this case than just type.