My family has pretty much always known that our last name means falcon in German. But we were recently surprised and delighted to learn that Sperber is also a German nickname for a "small but belligerent person." How fabulous! To tell the truth, though, my diminutive size seems to come more from my mother's side than my father's. The belligerence, however, is pure Sperber.
Anyway, don't mess with me. I may be small, but am also quite feisty. Also, I'm going to live longer than you are (and my family was much more likely than yours was to own a beer saloon in 1880—not that anyone I'm actually related to did).