The Fast's LP The Fast For Sale must have had just come out recently (at the time, 1980) and Frankie says to me, "Didja know that there was a third brother?" And me, "No, really?" "Yeah," sez Frankie in his great gravelly Boston tenor, "Cal Zone!"
I pissed my pants laughin' at that one...and strangely enough, i still do every time i think about it. But i'm like that with certain jokes.
Gee, Frankie should've said he went on to be a pizza chef...! BA-DA-BING!
And i come to find out years later there really was a third Zone brother...but Armand doesn't make for laughs like Cal does.