I agree with daniel, actually. There have been instances over the past 16 years of marriage, where my husband has reacted without thinking. One time in a pizzeria in Iowa (dont ask), I ordered a slice and a soda at the counter, and the guy that took my order said to the oven guy (in Italian), "get this bitch a slice", not realizing we understood the language. Before I knew what happened, my husband had the guy and smashed his head on the counter and hit him with something, and told him (in Italian), "before you call people names, make sure they don't understand the language"...then we left...quickly.
He's no super tough guy, but when he hears something he doesn't like, like this..there is no turning him off, he's going in and that's that.

Although, he also punched a guy in the face a few months ago in Lowe's, for stealing his cart (un-related to defending my honor at all), so maybe it's just my husband that has issues.