In a 9-inch saute pan over medium-high heat sweat shallots, garlic, hot pepper and oregano in the olive oil. About 2 minutes, until limp. Add vermouth and chicken stock, reduce this by half. Add sea urchin, cooking for 30 seconds. Whisk in butter, chunk at a time, breaking up urchins as you mix. Add parsley. Season with salt and pepper. Add lobster at the last minute. Toss with spaghetti. Serve immediately.