Scruffy single types, guys in suits, and a local chef or two are bellied up to the bar here at odd hours, like old barflies with the DTs. But it's the wahoo, not the whiskey, they're hankering for, and they'll have it straight, no chaser. Sushi Bon is a secret we'd really rather not share; this place tucked into a corner on sleepy Ocean Avenue has a total of four tables inside and a handful out -- it can't handle the masses. So if it's California and J.B. rolls you're after, please, go elsewhere. Serious sushi junkies turn up almost exclusively for the blackboard specials, fresh locally caught stuff and the pricey imports. You might find triggerfish sashimi, wild salmon roll, fresh toro, tilefish grilled with miso, grilled hog snapper, or that same hog stuffed into a fried tempura roll with mayonnaise -- the Japanese take on the Florida fish sandwich, priced from $7.50 to $13.95. The chef here also makes a beautiful tamago, a big, sweet slab of dense egg custard, and, occasionally, a hearty beef miso soup laden with exotic vegetables. Keep your eye on the board as you stake out your personal stool. This is going to be a tough habit to shake.