KPBS AIRDATE: April 4, 1991 >Ask Spalding Gray a question and you won't necessarily get a straight answer. He won't avoid; he'll digress. But that's what he does best: Take a circuitous route from Point A to Point B via a delicious series of personal anecdotal detours. >Gray is known as a monologist, a moniker he detests. He calls himself an Actor/Writer/Performer. One of the pieces he's doing here, tomorrow night, is "Monster in a Box,"