BULL: Aside from “D,” what are the other coolest (or not) one-letter nicknames?

MB: The best one-letter nicknames are, in order: Z, then K, then B. I’ve been nicknamed both K and B, but never Z—the only thing that keeps me going sometimes is the thought that someday someone might for whatever reason dub me that preeminent one-letter nickname, but at this point I just don’t know if it’s going to happen. I’ve also been nicknamed P (the 7th best) and M (the 11th). The worst one-letter nickname is U.