Every other restaurant is a Mexican joint
Los Angeles, San Antonio, and Santa Fe can all stake their claims to being the best cities in the country for Mexican food, but as far as consistency goes, nowhere touches San Diego. We’re the largest border city in America, we have one of the largest Hispanic populations in the country, and it might be the only major city in America where it’s consistently easier to find a taco joint than a burger stand. And even though it's not exactly "authentic," we also invented a burrito, so...
There’s a solid chance the person you just mean-mugged is in, or has been in, the military
San Diego is home to the largest naval fleet in the world, and roughly 22% of all jobs in the county are a result of defense-related contracts. If someone bumps into you at a bar, don’t try to act like a tough guy; there’s a solid chance they've served and can kick your ass.